photo site recommendations?

What photo sites do you folks recommend? What should I look for in a photo site?
Are there any pitfalls? Comcast has free hosting through snapfish but only for low res. and I have
to give them a visa card number just to use the "free" site.

I would like to start sharing my photos again. We have recently purchased a digital camera and notebook computer.

Thanks for your help.

flickr is pretty good. It's free for a basic membership, but you can only keep 3 "sets". A full membership is $20/year, which is a pretty good deal in my book. You can upload full size images if you use their photo uploader app. If you upload w/ a brower, it seems to resize them to a smaller size.