Well, it seems like there’s a good reason why theMulife has been a little barren over the past few days — Muhammad Saleem, one of the formost voices on social bookmarking, is joining Pronet Advertising for a regular column.  He also blogs at 901am.com with Dave Krug and Thord Hedengren, and runs Socially Given, a charity driven blognetwork that donates its ad revenue to charity.  In fact, they donated almost $300 to different charities in only a couple weeks of being around.

Best of luck to Muhammad — I always find his observations sharp and topical on social bookmarking, and it’ll be interesting to see what he brings to the Pronet.