ReadWriteWeb

The web isn't about pages any more. Now it's about streams, feeds and syndication. As part of our annual Best of Series, below are our picks for the most important RSS and Syndication Technologies of 2009.

You can see last year's list here and most of those remain important services. Only one service makes a repeat appearance this year. It was a very big year for this class of technologies, after a long, sleepy period the Real-Time Web began to cause substantial disruptions over the last 12 months. Check out our list below and let us know if we've missed anything important or who your picks might be for next year.

Superfeedr, a service that transforms a wide variety of feeds into normalized XMPP or Pubsubhubbub format, announced a seed round of funding from some very high-profile backers this morning. Betaworks, backers of Twitter, Bit.ly, Tweetdeck, Twitterfeed, Tumblr and more, and Mark Cuban, have invested in Superfeedr's parent company Notifixious.

Superfeedr offers services to both publishers and subscribers. Current marque users include SixApart, Adobe, Twitterfeed and Posterous. Notifixious founder Julien Genestoux first met Betaworks CEO John Borthwick at our event last month, the ReadWrite Real-Time Web Summit.

Blogging and stuff sharing service Posterous.com now publishes real-time PubSubHubbbub feeds for every site in its domain, the company announced yesterday in a blog post about a number of major revisions to the site. That means that real-time savvy content aggregators will receive Posterous content almost instantly after its published, instead of waiting as much as half an hour to poll the site for updates.

The company is using the service Superfeedr to outsource its Hub management. Posterous joins WordPress, Blogger and TypePad among the popular publishing platforms to offer real-time feeds.