Media search and discovery site MeFeedia this morning released its first State of the Vlogosphere report since 2007. The main take-away: video blogs have exploded since the last update, but most vloggers stick to the best known video hosting sites for distribution and promotion purposes. No surprises there, but since MeFeedia's video search engine self-reportedly tracks over 30,000 video sources across the Web, the company slapped some interesting numbers on the most apparent trends.