Hi.. Yesterday,I submitted my link to Stumbleupon and I saw I got more than 50000 clicks today when I slept.. The same thing happened when I submitted my other link to Digg months ago. Do those sites have a viral effect and do they return me as backlink? Do you know any other social bookmarking sites having viral effect?
Backlinks from StumbleUpon are useless for SEO because they're NoFollow. Here are the social bookmarking sites that could drive a lot of traffic: 1. StumbleUpon 2. Digg 3. Delicious 4. Redit etc. The first two will bring the most traffic.
If that many people visit your site, there is the potential you could get a backlink if they link your site enough once they visit. There's nothing automatic though, it's up to the visitor. Search the forum for "dofollow bookmarking sites" and you should find lots more sites to submit to.
It's the first time I hear about a 50 000 people spike from Stumbleupon. Has anyone else experienced this already? The biggest I've seen was maybe 8 000 in a day and my biggest is like 7 000.