I collect blurb writing tips. I'm not a natural-born blurb writer but each tip helps.
Here's one I've seen in various guises across the Internet.
My Author Tool Bag features sites I use in writing, editing, and marketing. It's stuff I've found online. The usual caveats apply--no recommendations either expressed or implied, don't click on blind links, have a good antivirus, etc. You know the drill.