Currently - (in general) what are the most important social networks to focus on

this could include factors such as TRAFFIC, BACKLINKS, BRANDING

 

Facebook.. it can give you huge traffic

 

Yes, Facebook and twitter is best ..

 

facebook and stubleupon working great for me

you can use facebook connection for ur own site

 

Prioritywise, Facebook, Twitter, Digg, StubmbleUpon. But you can change your priority for different type of websites, however I suggest to stick to at least these ones, no matter what type of buisness you have.

 

twitter then stumpleupon and digg are all fine
best on is twitter

 

I think the biggest has got to be Facebook. I see a lot of sites adopting Twitter though, I really must give that a try sometime!

 

Facebook is the social network. Start with a page there. It's the #1 in traffic, wide userbase and very professional fan pages offered. The tools they have is great. You can add some stumbleupon bookmarking for extra visitors, and twitter for followers.

AND
http://www.facebook.com/twitter/

your facebook pages can auto-post your updates to yourlinked twitter accounts, making these twitter accounts run on auto!

Very practical.

Use these and you're good for free traffic and recognition.

 

definitely facebook & maybe twitter

 

i go for digg.com and for techblogs, go for slashdot.org

 

Facebook for numbers & community building/targeting, Twitter for indexing....and if you're into music like me then myspace is still a must for bands