I've got
three short stories (2,000-3,000 words) available for free on Smashwords, and
my novel up for $2.49 (with the first 50% available as a free sample).
I'm torn...I want people to read my novel, but I worry that offering it for free devalues it. Plus I put
so much time and effort into creating it that just giving it away seems...wrong, somehow.
Maybe after it's been up there and doing nothing for a year I'll have a fit of pique and make it free. Or just delete it.

Time will tell, I suppose.
http://www.simonjohncox.com