What about privacy?
We log visits and we log searchterms.
- Visits: we log that at time x page y is requested. So we don't log that you visited this page, or any id, or session or anything that is related to you or your computer. We do this to see how popular the site is and which pages get used most.
- Searchterms: we log the searchterms and how many hits they returned. See what people are looking for so we can see which pictures are popular.