Hoping to feel more blog-inspiration tomorrow, I leave you with two instructive links on the proper use of apostrophes.
2. For those who need a more forceful approach, Bob the Angry Flower explains (via a LifeHacker.com comment).
Seriously, the only punctuation goof that seems more egregious than apostrophe errors is the placing of quotation marks after parenthetical references instead at the close of the actual quote. Don’t get me started.