I run a large forum with over one million posts. Over the years we've seen our traffic and rankings fluctuate quite a bit, though I really didn't do much SEO-wise. We started with vB 3, upgraded to vB 4 with VBSEO, and last month made the jump to XenForo.
Now that the migration is complete, I'd like to do what I can to increase our rankings. There is so much SEO information out there and so many people who say they know exactly what to do, it really is overwhelming. I'm concerned I might try something, only to find out it's a blackhat technique and get dinged by Google.
With over a million posts we certainly don't lack content, but our visits are down from around 14,000 to 10,000 per day.
If you were I, where would you start?
[edited by: aakk9999 at 10:17 pm (utc) on Apr 30, 2014]
[edit reason] Forum Charter [/edit]