if you're really into brand identities and logo marks, like myself... i highly recommend you to subscribe to logolounge.com. check out the 2007 logo trends... rubberbands, hubs, etc. this is a great place to see innovation... and avoid bad/old trends.
this post is for ruthy... i know you're creating some logos right now. and yes, i usually hate gradients/drop shadows, but i think that's where the web 2.0 world is going. i'm believe in the old school purist, bauhaus approach. if you're interested in seeing classic marks, go to pentagram.com. http://pentagram.com/en/portfolio/marks/