Okay so I lied, these aren't secrets of Google, they are open to everyone, and lots of people know about them already, but there are still quite a few who don't. These tools range from the weird, the useful and the funny.

There are plenty of other tools out there, some run by Google, and some not, like the popular elgooG, Doogle and so forth.

So here are 10 that caught my eye which are owned and operated by Google.

1. Google Zeitgeist

Zeitgeist means "spirit of the time", and it is quite a clever naming convention for this tool (collection of tools is should say), which is useful for finding trends. Use this data to get a rough idea of what's going on. Hot trends is pretty nifty for getting the 100 fastest-rising search queries, and it updates throughout the day. Might be useful for linkb... nevermind

Play around with Google Zeitgeist here.

2. Google Igpay Atinlay

Not much use here really, the results will not be in pig latin, but its nice to see that Google has a ensesay of umorhay. Click on the Ancedadvay Earchsay option for pig latin overload.

You can check out Google Igpay Atinlay here.

3. Google 3D Warehouse

This is just all around fun, and who knows what uses you may find for it. Browse through a bunch of 3D models, and even make your own using the Google Building Maker (You need to have Google Earth for this). Choose from buildings, furniture, cars--even fighter jets!

Check out the Google 3D Warehouse here.

4. Google Sets

An interesting tool that automatically creates sets of items, based on your query. I haven't found a solid use for this one yet, still, pretty cool though.

Play around with Google Sets here.

5. Google Goggles

Okay, get ready for awesomeness. Why type in a search query? Use your phone, snap a picture and search! Point your phone at something and let Google figure out what it is. Keep in mind that it is only available on phones that run Android 1.6+. Test it out and let us know how it worked out for you.

More info on Google Goggles here.

6. Google Logos

Every once in a while when you visit Google you will find the logo changed, usually when something festive is going on or when searching on a specific date that corresponds with a historical event. You can visit Google Logos and check them out. They have archived a bunch of Google logos all the way back from 1998. I really liked some of them last year; here are a few that caught my eye when I was checking out the site.

Check out the Google Logo archives.

7. Google Easter

A cute little game that will give you about eight seconds of enjoyment. If you stayed 10 minutes on there collecting eggs, well… I won't tell anybody. It's a simple little game where you move your mouse around and line up the falling eggs and start catching. What happens when you catch all the eggs to spell Google?

Fill up your basket.

8. Google Chart Tools

Okay, there are definitely plenty of uses for this one. Awesome tool, free, available for everyone and pretty easy to use. Giving you a broad selection of charts to choose from, you certainly won't be limited. Just get the Google Chart API and off you go… instant charts for your website! Stop struggling with your web development team and just throw this into the mix. Done and done. Awesome Tool + Free = WIN.

Get information on Google Charts and the API here.

9. Google Fast Flip

Not for the slow reader! Are you the type who soaks up information like a sponge? Then try this one on for size. Get ready for instant bombardment of information at a glance! Great stuff.

Start reading in a whole new way using Google Fast Flip.

10. Google Squared

This is a pretty neat tool. From one category it will create a starter "square" of information, automatically fetching and organizing facts from across the web. Really cool stuff. Want specs on a TV you plan to buy soon? Try typing in Television in there. Depending on your query, you can get some really interesting info that you can compare at a glance.

Start playing around with Google Squared over here.

There are plenty more Google tools out there. I listed 10 of them to give you a taste (which reminds me of an 11th Google Tool, Google Gulp). Feel free to share some of your favorites here, maybe you know of a couple I don't. I would like to check them out.

Which one of these did you find the coolest, the lamest, the most interesting? Do you find any of these useful for what you do? Share it with us in the comments below.