There's no question I wrote this with a consumer/social filter. I didn't go into enterprise (like storage, for example), even though I worked 8 1/2 years at a network storage company. There's definite bias toward a Twitter platform that never materialized.

I was careful to say "50 Top" instead of "Top 50". I know it's nuanced, but I didn't want it to be an end-all be-all king of lists. Just "Hey - here's 50 I'm watching."