For those of you who know how to edit Wiki, Mr. Smith has started a Wiki for Maryland Crabopedia which subscribers can apparently help to compile. Nothing there yet on this county. I hope to help out if I ever can find the time, as I'm also a volunteer editor of Wikipedia.
[Addition: Native Son, Prince George's County Historical & Cultural Trust, South Laurel News and Views, Prince George's County Advisory Committee on Aging, Fire Albert Wynn, PG Chic look like other good blogs to add to my list. Hmm, anyone know how to start a feed page for blogs on the same topic? Tool? Also, I removed Prince Georgian due to being dormant for over 4 mos.]