Off the Beaten Path
Join Date: Aug 2006
Location: Vancouver, BC, Canada.
You can view, search and browse photos on Zenfolio and (I think) Smugmug without signing up. They are both more expensive than Flickr for the unlimited account ($40 vs. $25), but the are both vastly superior in design and management features in my opinion. Flickr has better networking value if that's what you are after, though. Zenfolio is planning on rolling out a commnets feature, but for now is "view only."
If anyone decides to sign up for Zenfolio, give me a shout. I'll give you my referral code and we'll both save $10.