Ever come across those strips you think should be funny — if you could figure them out? Bill Bickel did — so he built a site dedicated to weekly debates on, say, what the hell Tuesday’s ”Tank McNamara” was about. This is good for two reasons: You are reassured that you are not the only one who finds those ”Far Side” spin-offs completely confounding. Plus, the resulting discussions (Did the cartoonist mean sea cucumber instead of sea slug?) can be more fun than the ‘toons themselves.