Andylew - 11:33 am on Jul 16, 2010 (gmt 0)
Things are still in a bizare state here.
12th July we saw a doubling of our traffic which was nice this has stayed stable however this seems to still be based on 10% of our pages in the index.
On the 12th for around 20 minutes I saw site: return a 'correct' number of pages (matching wmt) and indeed a peak is visible at that time in our stats. This was returned around 50% f the time so clearly two datasets in play.
As it stands now we are seeing improved rankings for our listed pages - the number of listed pages has not increased since 90% disapeared on 1st may. The 10% which are listed however have outdated descriptions although the caches are recent and some of the titles are also months old.
It looks like google are still tweaking based on a now rapidly aging longtail dataset then possibly once that looks good swap onto the more recent dataset.