For one, it strikes me as rather ironic that the Wiki, a pinnacle of Web 2.0 itself, doesn't allow reputable blogs on which published articles have been based.
Have you looked at their reliable sources page?
Primary sources are essentially out. (Strange. I get the no original research stuff (to a point), but there are a lot of instances where secondary sources are crap.)
"Questionable sources are those with a poor reputation for fact-checking."
Seems like that's quite a lot of our media sources?