If he is not a social media consultant, why should I trust him to tell me who is a social media consultant? SCNR...

In my mind, the definition of a social media consultant is someone who sells consulting services related to social media. This does not require that they actually know what they're talking about. Personally, I think it's a good indicator for who you can safely ignore. Give it a few months any they'll all be on to the next fad career label.

Thanks for drawing attention to this. Seems like blogs and twitter are more and more becoming platforms for posting about blogging and twittering. Could we start a list of bloggers/tweeters who actually contribute value?

Terry Tao, PZ Meyers (Pharyngula)