I've been doing some reading on music theory and watching many videos on the subject recently, and I'm compiling a list of my favorites, which I plan to post in the forums in the near future, but in the meantime I wanted to share this link which I thought was pretty cool. It includes chord progressions with live playback and a lot more for many current and past popular songs.

Hooktheory - Theory Tab

Edit - If you're viewing a song with the chord bars, you can click on the chord name in each chord bar and it will play the chord on piano for you.

p.s. - It seemed like this is the right forum for this topic, but mods feel free to move it if it belongs elsewhere.

What a great site. Thanks.

If you just need chords; ultimateguitar.com has thousands upon thousands of popular songs with chord progressions

Yes, as do many other sites. Just google/bing song title chords and you will find them.

I have to second hooktheory. I know it's been brought up here a few times, but it's always good to bring it up again. It's more than just giving you chords to a song. It's MUCH more interactive than that.

You can type in a melody and QUICKLY audition chords. It even has a "magic chord" feature that will allow you to see and audition possibilities you may not have thought of.

It also has another section where you can pick a chord and it will tell you a good number of chords that you could go to from that chord WITH percentages of songs in their data base that go to those chords. You can actually see by percentage that say 82% when to this chord, and 8% went to this chord, and 2% went to this chord...and on and on for EACH chord in the sequence. By that, I mean, you click your chord, get the suggestions, pick on, and it does the percentages for the chords from that chord next. Pretty wild!

I've used it for years now, and love the inspiration it can give.

The only thing I don't care for is, they boast a high number of tabs for songs. When they first started, these were complete songs. I think to fill songs faster they allowed for members to post tabs. As a result, there are many incomplete songs containing, only a chorus, or verse...or even just the start of a song. Bummer. Maybe that will change in time.