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1) A Doodlelog (or Doolg) is someone's blog which is mainly focused on random doodles, drawings or sketches posted by the blogger, or in this case, the Doodlelogger (or a Doolgger).

2) A simpler version of an Online Comic
The blog, P.I.P. (the Post-It Project) thepostitproject.blogspot.com is a Doodlelog or a Doolg.

Dude! Did you see that Doolg?!
by Andresvonpasty February 12, 2008