I'm a bit picky about artstyle... I don't read much manga, but when I do, I try to buy them after reading it online. Manga list:

• Akatsuki no Yona
• most of CLAMP stuffs
• Cuticle Tantei Inaba
• Daiya no Ace
• Gekkan Shoujo Nozaki-kun
• Harukaze no Etranger
• Hayate no Gotoku!
• Inu x Boku SS
• Kuroshitsuji
• Maiko-san Chi no Makanai-san
• NO.6_
• Ookiku Furikabutte
• Shitsurakuen
• SKET DANCE
• Super Lovers
• Yozakura Quartet

Light novel list:

• Durarara!!
• Utsuro no Hako to Zero no Maria