Hal Mayforth sketchbook is a riot.
notamax.com is a funny little site, full of illustration and the most intriguing animations, organic, fast and fun - you have to figure out which one to click. The website presence is a discovery. This is what is says in the info: Everything is original and may be used complimentary (LINKWARE). Massimo Nota is the artist.
And I could not mention humor without thinking of Bill Mayer, the master of humor and great illustrations. Delightful sketchbooks, naugthy art to make us laugh, beautiful scratchboard work, well, it is all impressive, have a look for yourself.