Google if twitter or facebook become #1 then the internet mostly full of lame people with way to much time on there hads
Google.com, because its the source of all information, both good and evil Although facebook is growing really quickly and catching up with Google
Google of course, but in these days Facebook has so much visits and I like it, because I advert my websites there!
Google of course. EVERYONE need to find something and use google for that. Facebook is also popular but just for entertainment purpose
Spamming your site, huh?? i think google is the first, facebook is second and yahoo is the third. It's reflected by their PR, and also i visited them more than others
The answer has to be google.com. 'Why' because it provides the most important thing a web surfer wants. 'Relevant Information'.