ichthyous - 12:40 pm on Sep 6, 2013 (gmt 0)
Zivush - there are links in the footer of every page that link back to the main sections of the site, otherwise they pretty much stand alone
Robert Charlton - Yes it's the same site with the keyword albums (not tag clouds). These keyword albums were in place long before Panda hit my site, but I did notice a huge spike in the number of indexed pages showing in WMT earlier this year. It jumped from roughly 7,000 pages on 12/2/12 to 26,000 by 4/28/13....then it turned right back around and started dropping pages until 8/11/13 when it leveled off at about 10,700 pages. I found the spike odd since I did not add massive amounts of new content to my site and the number of indexed pages was stable for years.
I implemented all the changes that were recommended in that post...I.e. removing all the tag links and no indexing all those pages. So far Google hasn't dropped them from the index though. I can see in WMT that the number of total pages indexed has barely gone down. I'm wondering how long that's going to take.
It also doesn't explain the slow crawl upward of one part of my site and the apparent demotion of another since the site design is a constant. In other words every section of the site and every page of the site contained the same tag links...I don't think the overall number of tag links in each section made much of a difference but I do think that cumulatively they could have had a big effect on my site overall as they pushed the proportion of thin pages up dramatically.