RSS (Rich Site Summary, alternately Really Simple Syndication) is a format for delivering regularly changing web content. Many news-related sites, weblogs and other online publishers syndicate their content as an RSS Feed to whoever wants it.
vBulletin has the capability to draw in specified RSS feeds and post them to the board. Anytime you see the poster "RSS" make a post, that's a post from an outside blog, like Brian's Plaid Stallions.
Let me know what you think of this feature.
I personally love it, because it brings in new content and gives you the chance to see stuff you might not otherwise see.
If you know of a good vintage toy related blog out there that you think would be a good addition to this, let me know!