How To Post on Craigslist
Gizmodo has some advice about how to post effectively on Craigslist - caution - the language pulls few punches:
DO NOT WRITE HEADLINES IN ALL CAPS. Or I will punch you in the soul. Seriously, do you want to annoy people before you've even had a chance to negotiate? Even if you do want to annoy the world, you should still avoid the caps. Capped headlines are the Internet version of compensating for a small penis with a loud motorcycle; everyone knows what's inside is a disappointment.