I liked this question, and I felt that the answers were valuable, so I thought I'd ask one along the same lines.
Which Twitterers do technology entrepreneurs find most valuable?
PS /meta/ Bummer, I wanted to tag this as "twitter" and "socialnetworking", but I can't create tags. :(
Some of the not so actively self promoting entrepreneurs who are well renowned for what they do.
Here are some guys ( 11 of them)
Jeff Pulver, (@jeffpulver ) VOIP entrepreneur
Loic Le Meur, (@loic ) Founder / CEO Seesmic, Founder Le Web
Dave McClure, (@davemcclure ) Serial entrepreneur now adviser
Craig Newmark, (@craignewmark ) Craig from Craigslist
Jason Fried, (@jasonfried ) 37signals co-founder
David Heinemeier Hansson, -2 (@dhh ) Co-founder 37signals
Paul Stamatiou, (@stammy ) Founder / CEO @ Skribit
Anil Dash, (@anildash ) Co-founder Six Apart
Ross Mayfield, (@ross ) Co-founder / President of SocialText
Joel Spolsky, (@spolsky ) Founder / CEO at Fog Creek Software
Jason Shellen, (@shellen ) Founder / CEO at Plinky