Yaya, I know… top lists are subjective and all that stuff, however, you can’t argue with the fact that people really do dig lists and they can be pretty handy to get started with your research. Now I may be a little biased since I’m on the list (;0) but even still, this recently published list from OpenGeo (@Opengeo) is pretty good and offers up suggestions to 100 GeoGeeks that you might wish to consider following on twitter or perhaps listing for yourself.
The OpenGeo crew used a nifty tool called LittleBird to generate a list of 100 “geo influencers” on Twitter. While you may or may not agree with the list, that’s not really the point here, rather, it is a good starting point and perhaps you could also use LittleBird for other purposes as well. Note, the list does include popular “magazines” and news zines which for the most part are broadcasting news and PR (GISuser, GISLounge, Drections etc…) and while these streams are largely RSS feeds and not what we’d likely consider “influencial folks” they do get grouped in here mainly due to their following and re-tweets I suspect.
Image Credit: OpenGeo