This is the tenth in an ongoing series called “Beyond The Big Three,” which highlights social networking sites other than Facebook, Twitter and LinkedIn. There are tons of other social media outposts on the Web, and they’re great places for associations to curate content. The first nine installments can be found here. Stay tuned.

When you click over to UStream.tv, you might be wondering what makes it different from other video-sharing sites such as YouTube or Vimeo. The awesome thing about UStream is you can record video live!

(Coincidentally, I began writing this post and saw KiKi L’Italien’s new “Social Media Sweet Spot” show, which she recorded live on UStream last Friday. This is a great example of how live video can be used for communication both at the time of recording and later on.)

On its About page, UStream explains, In less than two minutes, anyone can become a broadcaster by creating their own channel on Ustream or by broadcasting through their own site, empowering them to engage with their audience and further build their brand.

There are so many possibilities for associations who want to use UStream. I’ve written a bit about virtual attendance for conferences and meetings, and UStream could definitely be used to stream keynote speeches or learning sessions.

There is an interactive broadcast functionality, which allows viewers to interact with whoever is broadcasting. If the presenter chooses, virtual attendees could ask the presenter questions rather than just being passive viewers.

For larger events (such as a keynote speech), UStream also offers a one-to-many broadcast feature.

Associations could also use it for various training sessions, speeches or rallies or other events.

You don’t have to have an account to view videos, which is nice for people who just want to watch videos occasionally.

Getting started is very easy – all you need is an Internet connection and webcam.

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How could your association use UStream?

Also, I want to add that association professionals should by no means feel obligated to use all of the social networking sites I’ve highlighted in this series. I’ve always advocated picking and choosing based on which ones are correct fits for your organization, but definitely take the time to explore the ones you’re unfamiliar with.