In a recent survey on trends in business for social media use, the most favoured medium for online marketing was Company Blogs.
Which medium were considered most useful (comparison to 2009 in brackets)
1. Company Blog (up)
2. Twitter (strongly up)
3. Facebook (up)
4. LinkedIn (new)
5. YouTube (same)
6. StumbleUpon (down)
7. Flickr (slightly up)
8. Digg (down)
9. MySpace (down)
So the social bookmarking sites of Digg and StumbleUpon are losing ground as is MySpace.