Aight, so the website in question is fairly new.
Created it last June, and it got it's first page rank (3) when google finally did a PR Update a month or so ago.
By now, it's a pretty well established website, a leader in it's niche, with tons of sites and forum posts linking to it.
More than 80% of my visitors are loyal (returning) users, and the site gets thousands of hits per day from Google and other search engines.
I have google analytics installed, so google is aware of all that.
There is no adsense or other ads on that site.
Now, 2-3days ago, something happened.
The site lost it's site links that google showed, the PR was dropped to 0 (from 3) and in webmaster tools, the Crawl Rate and the Crawled Pages per day dropped to 1/3 to what they were the previous day.
All of that happened in a single day, so I'm pretty sure something is up.
The traffic google is sending, however, have not changed drastically.
The only thing I can think of is that my site got hit by the latest algo change, although I don't have Adsense and most of my traffic is from referring sites and returning visitors.
Anyone experienced something like this?