Along these lines, can anyone suggest tools to monitor the 'weather' on social media by tracking bot and flamewar like activity? I don't mean in terms of the actual content of what's posted, just how active different networks are and suchlike. I've looked at some social media monitoring tools but they seem both expensive and centered on a particular user's account or brand mentions.

I'm looking for a high-level semi-realtime tool; it doesn't need to do sentiment analysis or anything like that.