Update: Brian, from the Search Quality Team, just gave me a bit more info.
You probably have a compromised .htacess file, and maybe a .php script dropped in your cgi-bin/ directory, based on cases I’ve seen in the past. I can’t be sure without access. These hacking spammers tend to change and adapt.
On our end, we see pay-per-click pages when we visit the pages from Google results. One of this spammer’s goals is to leech off your good reputation in our index to send users to pay-per-click programs, which is a clear violation of our Quality Guidelines.
Looks like when my site was hacked last year, some annoying links were added to my site without my knowledge. Take a look at what happens when you do the “site:sleepyblogger.com” search on Google:
Now I have to find out how to dig through my server and find any pages like that. That should be fun 😉 Of course, I also have to find out if they’ve done it on any other domains I hold, since I also don’t want them being banned either.
So, no conspiracy, just a clever, malicious hack that will cause me hours of work…
Brian White from Google was kind enough to send me an email giving me a heads up as to what the problem was, so, “Many Thanks!” to Brian.
My guess is that spammy pages were added by a malicious third party. You may want to contact your ISP’s tech support if this is the case.
The reality is that such pages can have a negative effect on our users, so in these cases we typically prioritize a removal from our index first. We do want your site in our index 🙂