Zentangle Weekly Challenges
Inspiration Avenue weekly theme
WOYWW (What's on Your Worktable Wednesday) hosted by Stamping Ground
Creative Tuesday, bi-weekly
sponsored by Creative Tuesdays.comArt Every Day Month, November 2011
sponsored by Creative Every Day.com
Summer of Color, hosted by Twinkle, Twinkle
A Letter A Week (ALAW) challenge
Sketchbook monthly themes hosted by Sketchbook Challenge
http://sketchbookchallenge.blogspot.com/p/how-challenge-works.html
Summer Art Journal hosted by In The Sun
http://inthesuncourse.blogspot.com/
Art journal hosted by GPP Street Team monthly
http://michelleward.typepad.com/how_cool_is_that/
Other Artistic, Creative Challenges You Might Explore
Monday
Collage Obsession (weekly theme)
Creative Every Day
Tuesday
Wednesday
Thursday
Friday
Paint Party Friday
Saturday
Artists in Blogland
Butterfly Effect
Sunday
Sunday Sketches (general)