I have my own filters/rules which do this ("social" for FB/LinkedIn/Twitter and "not-people"), but this google labs feature does a better job at catching these

I have my own filters/rules which do this ("social" for FB/LinkedIn/Twitter and "not-people"), but this google labs feature does a better job at catching these types of notifications than my rules did. I add one or two "not-people" rules a week, also, which is getting silly. Good job, GMail team!