If you’re wondering why BlogRolling.com never seems to show your site as recently-updated, it’s likely because you’re not pinging it. I’ve been using the BlogRolling sidebar for years and just yesterday I noticed that my own site never seems to appear near the top of the list. MovableType was apparently pinging the BlogRolling servers, but WordPress by default does not. To make sure your blog is pinging the BlogRolling servers, make sure to add http://rpc.blogrolling.com/pinger/ to the “Update Services” list on the “Writing” tab of the “Options” panel.
You also might consider adding the No Ping Wait plugin, which speeds up posting by moving generic pings to a separate process.
These are the ping services that I update when I post:
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