Ping-o-matic

Here's a site that will take the leg work out of getting your blog 'pinged' by the most commonly used Ping Services on the web.

Simply provide your blogs name, url and site feed (optional) and ping-o-matic will not only ping all their services for you but they’ll allow you to bookmark the page. You're now only one click away from getting your blog instantly pinged every time you update.