So here’s the video, where we talk about key trends abroad, the markets that will really matter going forward in terms of growth for dominant players like MySpace and Facebook.

Both face a plethora of competitors, especially homegrown ones, as well as the challenge of creating meaningful social-networking experiences in a variety of languages.

For example, according to stats released in October by comScore, the European social-networking scene had 127.3 million unique visitors in August, 56% of the population. More than three-quarters of the U.K. were online with almost 25 million unique visitors in the same time period.

Bebo was slightly ahead of MySpace in the U.K., followed by a fast-growing Facebook and also Hi5.com.

That kind of competition abroad should be one of the more interesting stories for social networks going forward.

Here’s the video: