taberstruths - 1:35 pm on Apr 8, 2013 (gmt 0)
For me, an informational site with 1000 articles, I am seeing the return of long tail. Started the end of last week. The only thing I have done in the last month is move certain types of content to subdomains with "widget instructions" in url. Placed a "no-index" tag on old content and place a canonical link to where the content moved. I believe that broke any "bad links" since the links pointed to a page that was listed as "no-index". Maybe it is the power of the keywords in the subdomain. I don't know. All I know is that it has had a steady positive effect.