LowbrowArtwork.com
- Offering underground & alternative comic book art, including originals from Gilbert Shelton's Fabulous Furry Freak Brothers "Idiots Abroad".
- http://www.lowbrowartwork.com

Locke, Vince
- Official home page for artist and illustrator Vince Locke, with originals for sale from White Wolf, DC, Vertigo, and others.
- http://www.vincelocke.com

Layton, Bob
- Original art, recreations, and commissions by Bob Layton, noted for his work on Iron Man, the Huntress, and many other Marvel, DC, and Valiant titles.
- http://www.boblayton.com/

Lopresti, Aaron
- Originals and commissions from Marvel, DC, and other titles.
- http://www.aaronlopresti.com/

Lurid.com: Cult Movies, Comics and Culture!
- Artwork by Jay Geldhoff, Jill Thompson, and the official site of P. Craig Russell.
- http://www.lurid.com

Langridge, Roger: Hotel Fred
- Originals by the Roger Langridge, creator of Fred the Clown.
- http://www.hotelfred.com

Lieber, Steve
- Original art from Eisner-award winning artist Steve Lieber, including pages from Whiteout and Grendel Tales as well as life drawing.
- http://www.unrewarding.com/steve/

London Cartoon Gallery
- Original art from more than a dozen British cartoonists, including Hunt Emerson and Ronald Searle.
- http://www.cartoongallery.co.uk

Lay, Carol
- Original art by cartoonist Carol Lay from "Story Minute", New Yorker, Wall Street Journal, and others.
- http://www.waylay.com