My favourite band is Stone Temple Pilots but my musical tastes are quite eclectic and it's accurate if I say that I like rock in all its forms. It's easier for me to list bands I dislike (like Nickelback) then genres I particularly enjoy since there are a lot of them.
One music blog I read regularly is: www.alancross.ca
. Alan Cross is basically a legend up here in Canada where he is the host of a nationally syndicated radio show called "The Secret History of Rock." He was formerly the host of a show called "The Ongoing History of New Music". Anyway, as part of his blog, every week he lists new songs that sounded interesting to him. Some recent examples of very good songs I discovered through him were Midnight City by M83 and Somebody That I Used To Know by Gotye. He posted both songs before too many people knew about them. I distinctly remember watching the Gotye music video when it had only 3000 hits on Youtube.