Just to add that this site in particular has been live since last May of which it started to get into the search engines in July (as you can see by my log files).
However the meta tag analyzer website that i use states the following:
Keywords - "characters we recommend for this tag is 500"
Description - "characters we recommend for this tag is 200"
And they also give a keyword relevancy to page content.
Now some of my pages contain, way over these limits and also certain page contain "very poor keyword relevancy" - as they state.
However these are the page that get high results within the SERPS!
These are not the pages in mention that have dropped down!
So maybe it may change again - who knows!
