via Google Blogoscoped
Ionut Alex. Chitu reports you can now edit a spreadsheet with anyone who knows the URL, as an option, and not just people with a Google account which you invite. To set this up, start at Google Docs and click New Spreadsheet. Prepare your data and hit the Share tab; now configure the “Anyone can [edit] this without logging in” box, and share the URL Google provides you with. Ionut says, “your spreadsheet becomes a wiki.”