Shatner - 12:18 am on Oct 1, 2011 (gmt 0) [edited by: Shatner at 12:43 am (utc) on Oct 1, 2011]
As requested, by Whitey, here's a breakdown of my experience with details on what I did between each Panda occurrence...
February Panda 1.0 - My site was Pandalized and lost -50% of google traffic
Immediately following the above period I sprang into action and discovered the Google was improperly indexing a lot of my site, creating non-existing 404 pages for some reason, indexing unnecessary duplicates, that sort of thing. I fixed all of those problems. I also did all sorts of things to improve user experience, I reduced the number of ads I had on pages from 5 to 2, I cleaned up the look of my site, sped it up, and generally gave the whole place a spit polish, doing everything I could think of to improve user experience.
March Panda 2.0 - My site was Pandalized further and lost another 25% of google traffic, to make a total of -75% lost.
I made no further significant changes, except around May I put some of my ads back and increased the number of ads on my pages from 2 back to 4.
June/July Panda X? - My site began to recover from Panda and over the next month eventually fully recovered +75%
I made no changes after this point except an upgrade to my server which increased the speed of my site by 50%.
September 26 Panda Y - My site saw further gains in Google traffic and on that day recorded more google referrals than we've ever recorded before. +15%
I drank champagne thinking that all my misery over the previous 6 months had been worth it and that we were finally out of the weeds. I considered giving all of my employees a bonus.
September 27 Panda Z? - My site's recovery was taken away and I lost all of my recoveries. The numbers have continued to drop bit by bit over the course of this week. -75%
[edited by: Shatner at 12:43 am (utc) on Oct 1, 2011]