Online comics:

Anders Loves Maria

Bee

Cheap Thrills

Dead Winter

Effer

The End of Things

The Fart Party

Gunnerkrigg Court

Jack

Jesus and Mo

Octopus Pie

Scary Go Round

Sinfest

Slightly Damned

Smile (A Dental Drama)

Ugly Girl

Ugly Hill

Other neat sites:

Cartoon Brew

Lasagna Cat

More about artdevnull.com:

The artdevnull journal

Visual goodness:

Banksy

Vera Brosgol

Luke Chueh

Clone Army

Coconino World

Antoine Dodé

Robin Enrico

Kelly Hamilton

Gottfried Helnwein

R. Kikuo Johnson

Kerascoët

Kumajet

Miwer

Thomas Nøhr

Storm Thorgerson

Lewis Trondheim

Sara Varon