The things I use extensively that have a google stamp on them are:
1. Google Search Engine (includes images and dmoz directory)
2. Google Groups (I really get answers here)
3. Blogger (because of this, you are reading this)
4. Hello / Picasa
5. Google Desktop Seach (but worried about privacy)
6. Google Toolbar in IE and Firefox
7. IE/Firefox right click menu has Google search
8. Google News is my homepage in IE.
9. GMail (not much though)
And there are rumours that Google is building a browser, so you can expect what the tenth item on my list would be - GBrowser ?