Most
Failblog.org – Just hilarious, never-ending moments of human idiocy.
Netflix.com – I love websites which return your time spent. Not only is it full of great design and cool AJAX features, it keeps track of all your movies and movie ratings.
DeviantArt.com – This website has some of the best art I have ever seen. The amount of content rivals every other site, and you can spend hours relishing in (and envying) the talents of individuals all over the world.
Gametrailers.com – A lot of gaming websites are realy bogged down with ads and excessive clicking. Gametrailers.com tries to keep it a bit tight, and provides HD video for every video game.
imdb.com – Internet Movie Database, usually my central source for movie information. What’s that actor’s name?, When is Ridley Scott making another movie? and similar questions are examples of reason to visit imdb.
Wikipedia.org – I know some people scrutinize the credibility of this web encyclopedia, but I find these instances rare, and it’s really easy to use when trying to gather sources and learn quick info on basically any subject.
Youtube.com – What do you expect? Addicting content and good design always ensure at least part of my time.
Interfacelift.com – Beautiful wallpapers and OS X icons are constantly added to this free website. A great way to spruce up your desktop.
Least
Myspace.com - Annoying ads and loathsome loading times, make Myspace a major hassle when trying to use, much less the sloppy table style.
Gamespot.com – I used to be a big fan and user of gamespot.com, but the overuse of advertisements and more links than milipede’s legs slowly drove me away.
UrbanDictionary.com – Is it just me, or is 90% of all content sexual in nature? I personally believe there is more than a handful of people just sitting around thinking up idiotic phrases and trying to submit them to urbandictionary.com.
Microsoft.com – Fortunately most of my work is done via Apple, so I spend little time troubleshooting Microsoft issues, but when I do need to use microsoft.com, I always have a hard time. There’s just something lacking about it when you think that one of the richest company in the whole world funded it.
Rottentomatoes.com – The only thing less consistent then it’s reviews are it’s loading times.
My favorite website is Ecanny.com and its now for sale. It can be found on sedo. This blog would have a great home there.