This may sound kinda weird to some people, but I love listening to sermons online.  While I don't do it as much as I would like to(I don't have my own office at work, and I'm usually watching TV while I'm checking my email at home), I do enjoy.  Maybe its because I'm married to a pastor who is deeply passionate about preaching, or maybe its because I went to an awesome Bible College that had week after week of meaty, nitty-gritty, in your face chapel services.  My longing to hear challenging, straight-from-the-Bible sermons sends me on a quest, week after week, and I have found some interesting and incredible sermons on these online adventures... and let me tell you it is fun!  I kinda feel like one of those back-pew members or visitors... I just kinda eavesdrop on churches all over the country... all from my living room!  Usually I listen/watch sermons from churches where a friend or relative goes like  North Point Community Church.  I really really liked the series (which I think now has a website dedicated to this idea) about 5 Things God Uses to Grow Your Faith.  Every Sunday morning, I tuned in to that and was very challenged... you can tell in his preaching that he puts into practice those principles, and that the church as a whole is unified in that.  Very cool... you should go listen to those... its the symbol at the top with the colorful tree.