Here's my list:
Ragnarok (very good)
Ravemaster (my favorite)
Tokyo Mew Mew (cute)
Wild Act (becoming one of my favs.)
Flame of Recca (very good)
Tuxedo Gin (hah hah cute)
Finished Cardcaptor Sakura and it is one of the best manga's written - CLAMP!
Samurai Deeper Kyo (so much better than the anime)
Shaolin Sisters (just finished first set, and I anticipate the anime - mucho good)
Digi Charat (weird)
Alien Nine (I love the honesty of the mangaka. He's just delivering a really wild and good manga)
Love Hina (it's over, but still Ken Akamatsu is the best in story design)
I read Megatokyo online and will eventually by the first volume.
Brain Powered (humm, okay)
Hana Yori Dango (okay)
Dragon Hunter (names and people are confusing, but it's okay)
Scryed (different than the anime - so different)
I read a lot of manga, but it's easy when you can read through a book in 15 minutes.