OK so the robots file did nothing. In fact I am now down as low as 51 for my own keyword! This is just ridiculous. I have tried finding contact information for Google, but to no avail. The only people I can contact is the adsense team, who refuse to offer help or explination. I have hundreds of incoming links, so I know that is not the problem. And I remain top of Yahoo and every other engine for keywords, just not Google. I am getting really pissed off to be honest, because currently a stupid wikipedia article is topping the search for "pesinsight"... and once I have had that removed, it will be an admin zone thread, which is just embarassing.
Okay, let's try again. You have a few links to your site by the address pesinsight.com instead of www.pensight.com. I don't know if this is what may be causing your problem, but I did have a problem with Google dropping my index page out of the listings because I got a link to website.com instead of www.website.com and I'm just guessing that Google considered it dupe content. Only your site doesn't seem to be having the same problems mine did. I just used htaccess to direct website.com to www.website.com. Maybe someone else can follow up and expand on that a bit. Just trying to help. Looks like WIKI is still your google traffic driver right now.
That wiki entry had actually been deleted but since it was still number one, I decided to edited it and put my domain so at least people can still find me. I assume wiki will remove that soon though. Right now I am just considering taking my database and starting again on a whole new domain. I know it has nothing to do with my number of backlinks etc because I have literally hundreds. And Yahoo and every other engine has no problem with it. I could try that www. thing if someone can explain how I'd automatically make sure everyone visits www.pesinsight.com and not pesinsight.com.
i was shown this is what you need to have in your .htaccess file. there may be a certain way to do it, but i just dropped a line and pasted this code in my file (well, not that exact same code ) it works for me, but someone please confirm this. i don't want to mess up anyone's site. hope you get the problem taken care of soon. sucks not to see your site where it should be.