Recently I was asked the question, “What does Google know about me?” This person was concerned with their privacy and was interested in knowing what Google knows about them, so I decided to do some searches. Here are some interesting results on what Google knows about you.
Social Bookmarking
Google knows what social bookmarking sites you participate in, such as digg.

Photo Sharing
Google knows what photo sharing sites you use.

Favorite Blogs
Google knows what your favorite blogs are.

MySpace
Google knows if you have a MySpace profile.

Blogging
Google knows where you blog at.

Wikipedia
Google knows if you have a Wikipedia page.

Forums
Google knows what forums you participate in.

Books
Google knows what book(s) you have written.

Podcast
Google knows if you have been on a podcast.

LinkedIn
Google knows if you are LinkedIn.

This is also assuming that the person uses thier real names. All of this was obvious.
That’s quite interesting, although really it’s just that Google only knows you if you publish content actively on the web and use your real name to do so. So while Google might know a lot about you if you use your real name to do stuff on the internet, it would only take a small amount of caution to ensure that you’re not popping up on Google searches if you don’t want to be.
If you have search history turned on in Google, then they pretty much know everything about you.
Google owns your soul. Now bend over and assume the position.
this is common sense. a bunch of hype about something everyone should already know.
Luckily for me there’s quite a few other Andy Spencer’s in this world, and it just so happens that most of them are quite a bit more popular than me (at least with google). Google will tell you quite a bit about ‘Andy Spencer’ but not much at all about me. If you’re really lucky (or unluckily as some may see it) you’ll have a name like ‘Kevin Rose’ or ‘George Bush’ and basically make google useless to anyone trying to find anything out about you.
Google knows everything you tell it. Like Jesse said, tell us something we don’t know.
This has nothing to do with what google knows about ME. All those people pretty well make their living from being googlable.
Google found those hits because those people put that information on the internet and made it readily available to anyone who wants to know about it.
A Google for my name, for example, gets absolutely no hits relating to myself, only people with the same name whose details are on the internet. If you’re paranoid, don’t put any personal details on your blog or website.
That makes the private detective’s job look pretty easy :)
This is good but all above mentioned people like to get googled for their one or other activity like to promote their book or blog etc etc
Let’s not forget Yahoo:
Del.icio.us – So you actually bookmarked that CollegeHumor.com page?
Flickr – Vacation photos, BBQ with Friends photos (Now with Geotagging!)
Upcoming.org – So you like to go to Web 2.0 parties and Rob Zombie concerts?
Y!360 – Age, Location, Education etc
Dont forget Yahoo Shopping, Yahoo Jobs and oh yes, Yahoo Search…