Welcome to the Q&A Forum

We can rank a e-commerce product page,
http://moz.com/blog/building-deep-links-into-ecommerce-pages

Q: But how do we rank a forum topic?
For example i want to rank this page, http://moz.com/community/q/does-a-link-in-facebook-count-as-a-backlinkHow do i go about doing it? Is it similar to ranking a website?

I notice that many sites have sub headings appearing below their google results.

http://i.imgur.com/A5JxMKD.png
See image for example.

Q: what are these called? and how do we get them?

A5JxMKD.png

Is there a tool in MOZpro where i can check my sitewide links?

Is there any helpful articles regarding sitewide links? Im confuse about (1) how to detect sitewide links (2) are they harmful or not (3) how to remove them.

Sample Scenario
I have 5 websites (www.sample.com) targeting 5 different counties
www.samplecn.com (china)
www.sampleny.com (new york)
www.samplekr.com (korea)
www.samplejp.com (japan)
www.samplesg.com (singapore)

On each website i have a flag logo on every single page/ header allowing users to select the other websites. After 4 months, i end up with 200,000 backlinks from all the other 4 websites

Why am i worried: I find myself ranking #1 for a lot of the keywords for the 4th months straight now without doing much SEO optimization. And there are alot of websites below me which have better and more informative site than me. Should i be worried? am i doing something called "sitewide links"?

Q: Does a link in a facebook post count as a backlink?

Q: is it a 'do follow' or 'no follow' link?

Q: twitter uses short links, so when someone links to me, do i get the points/juice from the backlink?