Mystery Incorporated UK isn't the prettiest comic on the web. It isn't the best written either. It might just be the most British though.
Like most of the best ideas in mankind's history, MI_UK was thought up at the pub. The concept sprang from the fact that the 'pesky kids' of Scooby Doo didn't act like teenagers at all - no swearing, no drinking, no talking about sex. MI_UK re-imagines the 'Mystery Incorporated' concept with sceptical English 'kids' who do all of the above - and no talking dog. MI_UK is written by Jacob, who's a student; and drawn by Robyn, who isn't.
It also has a facebook page, if you're so inclined http://www.facebook.com/pages/Mystery-Incorporated-UK-webcomic/125399417508231
(DISCLAIMER: Though appearance and names of the main cast are based (with consent) upon actual persons the characters' personalities are fabricated, or else twisted and exaggerated so far as to no longer realistically represent their namesake.)
Some of you might have noticed that the story is of a slightly different style in Noir, and The Adventures of Dr. McNinja were an influence on this. They also delve deep into the uses of inverse ninja law. Check it out, if you don't already (just google it).