Whitey - 7:49 pm on Dec 5, 2010 (gmt 0)
Tell me, what would be a massive link campaign for a site with 25 million pages in the index?
You don't chase links when you have a megasite - they chase you!
Consideration needs to be given to whether the pages index and rank for the query terms in the first place. Relying on brand to build up links may work for some , but not others and time is an issue.
Not all mega sites get easily linked to in the areas that count , so it may require some help.