The panel was held by Howard Tayler, Joe Pearce, Tom Galloway and Claude Lalumière
There is no clear definition of webcomics but there panelists agrees that a webcomic had at least one day in his life been published on the web. Its much better to talk about “comics” published on the web. The distribution medium is not that important. Here is a partial list of the webcomics presented during the panel. If I have missed some please add them in comments. Also some has been added by the participants.
Inherit the Earth
Calvin and Hobbes
Doctor Fun
The book of Biff
Three kingdoms comic
Jesus and Mo
XKCD
Penny arcade
Schlock mercenary
Girl Genius
Freak angels
Finder
Sin Titulo
A distant soil
Something * positive
Kevin and Kell
The Whiteboard
Exterminatus now
Sluggy freelance
A softer world
Partially Clips
Darths & Droids
DM of the rings
The order of the stick
Gunnerkrigg Court
Keep the beat
Dork tower
Dresden Codak
User friendly
A girl and her fed
Ozy and Millie
Saturday morning breakfast cereal
Yet another fantasy gamer comic
Slow wave
I would like to add two of my own to the list:
CTRL + ALT + DEL
Mega Tokyo (the first ones are good after that it begins to loose interest)
Also, an animated one… a kind of mix between a webcomic and animated episode :

Related Articles
3 users responded in this post
[...] Distant Soil was among the recommended at the World Science Fiction Convention panel on Webcomics You Should be Reading. Lovely news, [...]
Diesel Sweeties by R. Stevens is another one to add to the list.
Thank you very much. I will add it to a new list when I have collected enough links.