6 Months Ago, Ultimate-Guitar.Com says (in Linkin Park Hard At Work On 4th Album) Linkin Park is hard at work on its fourth album, which will likely come out in 2010 according to co-frontman Mike Shinoda.

And Digital Spy says (in Linkin Park prep new album) By Marcell Minaya Linkin Park are currently at work preparing their fourth studio album, it has been reported. Co-frontman Mike Shinoda confirmed that the band have decided on a producer, but are keeping the information under wraps at present. ...

And Reuters Canada says (in Linkin Park crosses "New Divide" for "Transformers")  Canada
As for the new Linkin Park album, it likely will come out in 2010, according to co-frontman Mike Shinoda. "It's moving," Shinoda told Billboard.com. "I feel like we've been writing a lot. I'd say we've got about half the music done, though I shouldn't ...

And Reuters says (in Linkin Park crosses "New Divide" for "Transformers") As for the new Linkin Park album, it likely will come out in 2010, according to co-frontman Mike Shinoda. "It's moving," Shinoda told Billboard.com. "I feel like we've been writing a lot. I'd say we've got about half the music done, though I shouldn't ...
Billboard