Egad! I just looked over the "manga" file in my downloads folder, and there're an awful lot of different titles in it! Let's see, I'm going to waste some space here by listing all of the ones that I like or am following (some titles I downloaded a chapter or two and got bored):
+Anime; Ai Yori Aoshi; Alice 19; Alchino; Aoi Spice; Atashi wa Bambi; Binetsu Shoujo; Black Cat; Bleach; B-Wanted; BxB Brothers; Eden no Hana; Epotoransu Mai; Fruits Basket; Full Moon wo Sagashite; Gals!; Good Morning Call; Hana Yori Dango; Hanakimi; Hikaru no Go; Hime-chan no Ribon; Hitsuji wo Kasoete Dokomademo; Hunter x Hunter; Imadoki; Ingenuo; Kare First Love; Kimi Shika Iranai; Koi Suru 1/4; Minto na Bokura; Missing Peace; Never Give Up; Othello; Parfait Tic; Partner; Power!; Random Walk; Tokyo Crazy Paradise; Ultra Maniac; W-Juliet; W-Pinch; Yaiba; Yakitate Japan; Yume Miru Happa
Most of the titles are shoujo, but some, like Bleach, Hikaru no Go, Hunter x Hunter, are shounen. The bold ones are titles that I've bought the original manga for, and the ones in italics are series I'd like to buy, when the price is reasonable and/or I have money. I feel kind of guilty for not wanting to buy all of the manga that I've downloaded, since I obviously like them enough keep downloading the series and to read them, but I feel a bit better knowing that I've started to buy some of them, so the scanlations are serving their purpose.
Anyway, I don't really have much of a point here. I guess I just wanted to throw out a whole bunch of manga titles so that you can try them out if you're interested. Manga Jouhou keeps track of different scanlating groups, their projects, newest releases, etc. so it's a great resource! Oh, and the manga reader from Toriyama World is really quite invaluable for reading all the manga!
