I get them from a Calgary paper - I just bookmarked it and read a few strips every morning.
When I find a cartoon I want to post, I just right-click, select Properties, click on the second URL that is in the box, and paste it with an [IMG][/IMG] at either end.
Here is the link, though you may want to find one of your own - some good ones here, though!
http://lifewise.canoe.ca/Comics/
Bookmarks