Which is the most effective?Facebook, Twitter, Stubleupon orReddi

[OWF]

Power of social media cannot be under-estimated in nowadays blogging, last year statscounter said Stumbleupon is the second most effective way to drive traffic to your site making it effective than twitter.

Which one do you think is the most effective? Facebook, Twitter, Stubleupon, Reddit, Digg and others.

Pls state why you prefer one than others

 

[hoangvu]

I think Twitter is most effective with orders
Twitter > stumbleupon.com > facebook > Digg > reddit and others
Other comments, guys ?

 

[Ric]

I am not agree with your opinion of stumbleupon, Twitter and Facebook are tough competitor. But stumbleupon has no place between them. Google Plus is also a good site and in queue.