I just saw this mod: PubSubHubBub for vB 4.x.x About PubSubHubBub (PuSH): PubSubHubBub is a new protocol for realtime indexation of webpages. It works by pushing new content to a distributed network of PuSH compatible servers, rather than relying on a crawler hitting the board to find new content. Is it similar to Ping-o-Matic?: Similar yes, but PuSH works in a slightly different way, and is getting some heavyweight support from big players like wordpress who have included it on every wp.com blog. Where can I learn More about PubSubHubBub?: Try the official google documentation for full information. Alternatively, watch http://www.vbulletin.org/forum/showthread.php?t=254618 I've added it to our forum, if it works than I'll go for the brand free version for $10.