Nobody cares about incidental linking to infringing material. What they care about are streaming sites and file locker sites. SurfTheChannel is a good example, it was an index of links to pretty much any tv show or movie hosted on sites like the former Mega network etc:
"At the site's peak in mid-2009 it generated up to £50,000 ($78,500) per month in advertising revenue, and was more popular than Facebook"
"At the site's peak in mid-2009 it generated up to £50,000 ($78,500) per month in advertising revenue, and was more popular than Facebook"
http://en.wikipedia.org/wiki/Surfthechannel