The Arizona Cardinals signed offensive lineman Kelly Butler to a one-year contract; waived offensive lineman Thaddeus Coleman.

The Houston Texans signed running back Mike Bell; waived free safety Brandon Mitchell.

The Jacksonville Jaguars signed guard Chris Liwienski; waived quarterback Paul Smith.

The Washington Redskins signed linebacker Alfred Fincher; waived running back Eric Shelton.

The Chicago Bears signed tight end Marcus Stone.

The Miami Dolphins signed cornerback Chris Roberson; waived cornerback Scorpio Babers.

The New York Jets signed linebackers Jerry Mackey and Brandon Renkart, defensive back Ron Girault and wide receiver Rudy Burgess; released defensive back Andre Woolfolk; waived defensive back Darnell Bing and punter Joe Smith.

The Arizona Cardinals signed tight end Brent Miller to a one-year contract; waived tight end Troy Bienemann.

The Atlanta Falcons agreed to terms with defensive tackle Grady Jackson; signed cornerback Glenn Sharpe.

The Chicago Bears waived quarterback Nick Hill.

The Pittsburgh Steelers claimed punter Paul Ernster off waivers from the Detroit Lions.

The Washington Redskins signed defensive tackle Babatunde Oshinowo; waived defensive tackle Zarnell Fitch.

The Cincinnati Bengals signed cornerback Jonathan Zenon to a one-year contract.

The Chicago Bears agreed to terms with kick returner Devin Hester on a four-year contract extension through 2013.

The New England Patriots waived offensive lineman La Bauta; signed offensive lineman Pete McMahon.

The Pittsburgh Steelers signed wide receiver Limas Sweed to a four-year contract.

The Washington Redskins signed defensive tackle Zarnell Fitch and guard Fred Matua; waived guard Kerry Brown and defensive end J.T. Mapu.

The Arizona Cardinals released running back Chris Vincent.

The Buffalo Bills signed defensive back Leodis McKelvin.

The Carolina Panthers signed running back Jonathan Stewart to a five-year contract.

The Denver Broncos signed wide receiver Taylor Jacobs.

The Green Bay Packers signed tight end Jermichael Finley and defensive end Jeremy Thompson; waived tight end Mike Peterson.

The Kansas City Chiefs agreed to terms with defensive tackle Glenn Dorsey on a six-year contract.

The Miami Dolphins signed defensive end Phillip Merling and quarterback Chad Henne to multi-year contracts; signed wide receiver Anthony Armstrong and guard Rueben Riley; waived tackles Dan Gore and Julius Wilson and wide receiver Justin Wynn.

The New England Patriots signed running back LaMont Jordan and tackle Lav Bauta.

The New York Jets waived running back Danny Woodhead.

The Seattle Seahawks signed tight end John Carlson to a multi-year contract; released tight end Zac Alcorn.

The Tennessee Titans agreed to terms with running back Chris Johnson on a multi-year contract.

The Arizona Cardinals agreed to terms with cornerback Dominique Rodgers-Cromartie on a six-year contract.

The Atlanta Falcons signed linebacker Curtis Lofton to a four-year contract; agreed to terms with offensive lineman Sam Baker; waived offensive lineman Pat McCoy and cornerback Glenn Sharpe.

The Chicago Bears waived tight end Marcus Stone.

The Cincinnati Bengals waived running back Kenny Irons.

The Denver Broncos signed tackle Ryan Clady.

The Houston Texans signed tackle Duane Brown.

The Jacksonville Jaguars signed defensive ends Quentin Groves and Mkristo Bruce, tackle Leander Jordan and wide receiver Ryan Hoag; waived tight end Adam Bishop and guard Pete McMahon.

The Philadelphia Eagles signed guard Cameron Stephenson.

The Pittsburgh Steelers agreed to terms with running back Rashard Mendenhall.

The Seattle Seahawks signed defensive end Lawrence Jackson, defensive tackle Red Bryant and fullback Owen Schmitt to multi-year contracts; signed wide receiver Bryan Gilmore; released defensive tackle Kevin Brown, fullback Dan Curran and safety Mike Green.

The Tennessee Titans agreed to terms with defensive tackle Albert Haynesworth.

The Buffalo Bills signed defensive end Chris Ellis, running back Xavier Omon and running back James Hardy.

The Chicago Bears signed wide receiver Ryan-Grice Mullen; waived fullback J.D. Runnels.

The Cincinnati Bengals released cornerback Blue Adams.

The Denver Broncos announced the retirement of wide receiver Rod Smith; signed wide receiver Eddie Royal.

The Green Bay Packers signed guard Josh Sitton; waived punter Ken DeBauche, linebacker Marcus Riley and cornerback Kyle Ward.

The Kansas City Chiefs agreed to terms with tackle Branden Albert on a five-year contract.

The New England Patriots signed defensive tackle Titus Adams and linebacker Jerod Mayo; released offensive lineman Lavdrim Bauta.

The Pittsburgh Steelers waived wide receiver Matt Trannon.

The San Diego Chargers agreed to terms with cornerback Antoine Cason on a five-year contract.

The San Francisco 49ers signed defensive end Kentwan Balmer.

The Buffalo Bills signed linebacker Alvin Bowen.

The Chicago Bears agreed to terms with tackle Chris Williams on a five-year contract.

The Green Bay Packers signed tackle Breno Giacomini, quarterback Matt Flynn and wide receiver Brett Swain.

The Kansas City Chiefs signed cornerback Brandon Flowers to a four-year contract and wide receivers Sergio Joachim and Timon Marshall to two-year contracts.

The Minnesota Vikings signed safety Tyrell Johnson, quarterback John David Booty and center John Sullivan.

The San Diego Chargers released wide receiver Eric Parker.

The San Francisco 49ers signed center Cody Wallace.

The St. Louis Rams agreed to terms with cornerback Justin King on a three-year contract.

The Chicago Bears signed linebacker Brian Urlacher to a one-year contract extension.

The Cincinnati Bengals signed wide receiver Mario Urrutia to a four-year contract.

The Cleveland Browns signed linebackers Beau Bell and Alex Hall, tight end Martin Rucker, defensive tackle Ahytba Rubin and wide receiver Paul Hubbard to four-year contracts.

The Denver Broncos signed cornerback Jack Williams.

The Minnesota Vikings agreed to terms with defensive tackle Letroy Guion and wide receiver Jaymar Johnson.

The New England Patriots signed offensive tackle Lavdrim Bauta and cornerback Terrence Wheatley.

The New York Jets signed defensive back Ahmad Carroll; waived defensive back Nate Lyles.

The San Diego Chargers signed defensive end Luis Castillo to a seven-year contract.

The San Francisco 49ers signed cornerback Reggie Smith.

The St. Louis Rams agreed to terms with linebacker David Vobora on a three-year contract.

The Arizona Cardinals agreed to terms with defensive end Calais Campbell on a four-year contract; released defensive end Bo Schobel.

The Cleveland Browns signed defensive end Christian Mohr; waived defensive end Zach West and defensive back Justin Sandy.

The Denver Broncos waived running back Mike Bell and kicker Garrett Hartley; signed center Kory Lichtensteiger.

The Kansas City Chiefs agreed to terms with running back Jamaal Charls and tight end Brad Cottam on three-year contracts.

The New England Patriots signed linebacker Shawn Crable, quarterback Kevin O'Connell, offensive tackle Anthony Clement and wide receiver Chris Dunlap.

The New Orleans Saints acquired tight end Jeremy Shockey from the New York Giants for 2009 second- and fifth-round picks.

The New York Giants signed cornerback Terrell Thomas; waived offensive linemen Brandon Torrey, Dylan Thiry and Andrew Bain.

The Philadelphia Eagles agreed to terms with with defensive tackle Trevor Laws on a four-year contract.

The St. Louis Rams agreed to terms with defensive end Chris Long on a long-term contract and with linebacker Chris Chamberlain in a three-year contract.

The Washington Redskins agreed to terms with tight end Fred Davis.

The Atlanta Falcons released wide receiver Tony Gonzalez.

The Balitmore Ravens signed wide receiver Marcus Smith to a three-year contract; waived linebacker Mike Smith.

The Kansas City Chiefs agreed to terms with safety DaJuan Morgan on a three-year contract.

The New Orleans Saints agreed to terms with wide receiver Adrian Arrington and kicker Taylor Mehlhaff on three-year contracts; waived cornerback Anwar Phillips, quarterback Travis Lulay and defensive end Jeremy Geathers.

The New York Jets signed tight end Dustin Keller; waived cornerback Jonathan Zenon.

The San Diego Chargers agreed to terms with running back Jacob Hester and cornerback DeJuan Tribble on four-year contracts.

The Washington Redskins signed wide receiver Devin Thomas; released fullback Pete Schmitt.

The Carolina Panthers signed linebacker Dan Connor and defensive end Hilee Taylor.

The Cincinnati Bengals signed tight end Matt Sherry and defensive end Angelo Craig to four-year contracts.

The Jacksonville Jaguars signed defensive back Trae Williams.

The New England Patriots signed cornerback Jonathan Wilhite.

The New England Patriots signed quarterback Erik Ainge and offensive lineman Kyle DeVan.

The Denver Broncos signed fullback Peyton Hillis.

The Houston Texans signed linebacker Xavier Adibi.

The Kansas City Chiefs agreed to terms with wide receiver Kevin Robinson and defensive end Brian Johnston on three-year contracts.

The New York Jets signed cornerback Dwight Lowery.

The Pittsburgh Steelers signed linebacker Mike Humpal to a three-year contract.

The San Francisco 49ers signed guard-tackle Chilo Rachal.

The Arizona Cardinals agreed to terms with wide receiver Early Doucet on a three-year contract.

The Atlanta Falcons signed linebacker Robert James to a four-year contract.

The Chicago Bears signed running back Kevin Jones to a one-year contract.

The Cincinnati Bengals signed defensive tackle Jason Shirley to a four-year contract; acquired linebacker Carl-Johan Bjork as an international practice squad player.

The Dallas Cowboys signed safety Ken Hamlin to a six-year contract.

The New York Giants signed wide receiver Mario Manningham.

The San Francisco 49ers waived defensive end Melvin Oliver.

The Jacksonville Jaguars signed linebacker Thomas Williams.

The Pittsburgh Steelers signed quarterback Dennis Dixon and safety Ryan Mundy.

The Washington Redskins agreed to terms with quarterback Colt Brennan.

The Miami Dolphins signed defensive end Kendall Langford to a multi-year contract.

The San Francisco 49ers signed linebacker Larry Grant.

The Washington Redskins agreed to terms with wide receiver Malcolm Kelly.

The Washington Redskins agreed to terms with offensive lineman Chad Rinehart.

The Denver Broncos signed running back Ryan Torain, defensive tackle Carlton Powell and linebacker Spencer Larsen.

The Pittsburgh Steelers signed linebacker Bruce Davis.

The Buffalo Bills signed wide receiver Steve Johnson.

The Cincinnati Bengals waived defensive tackles Titus Adams, Michael Marquardt and cornerback Jerrid Gaines.

The New York Jets waived wide receiver Ashlan Davis, defensive back Kenny Patton and running back Justin Valentine.

The Pittsburgh Steelers signed tackle Tony Hills.

The Chicago Bears agreed to terms with running back Matt Forte on a four-year contract.

The Pittsburgh Steelers released quarterback Jared Zabransky; signed wide receiver Marvin Allen to the practice squad.

The Buffalo Bills signed offensive tackle Demetrius Bell; released fullback Mike Viti.

The Chicago Bears signed defensive tackle Marcus Harrison to a four-year contract; agreed to terms with wide receiver Earl Bennett and cornerback Zack Bowman on four-year contracts.

The New England Patriots signed linebacker Bo Ruud; released defensive back Willie Andrews.

The Philadelphia Eagles signed defensive end Bryan Smith to a four-year contract.

The San Diego Chargers signed running back Marcus Thomas and tackle Corey Clark to four-year contracts.

The San Francisco 49ers waived guard John Booker and linebacker Shaun Richardson.