A Google profile is simply how you present yourself on Google products to other Google users. It allows you to control how you appear on Google and tell others a bit more about who you are. With a Google profile, you can easily share your web content on one central location. You can include, for example, links to your blog, online photos, and other profiles such as Facebook, LinkedIn, and more. You have control over what others see. Your profile won't display any private information unless you've explicitly added it.
You can also allow people to find you more easily by enabling your profile to be searched by your name. Simply set your existing profile to show your full name publicly.
If you've been writing reviews on Google Maps, creating articles on Google Knol, sharing Google Reader items, or adding books to your Google Book Search library, you may already have a profile. See and customize your profile.
We're still working to improve profiles on Google. Please submit your suggestions and comments to help us decide where to go next.
Sample profile
Receive messages. Enable the 'Send a message' feature to allow anyone with a Google Account to email you without revealing your email address.
Add photos. Enhance your profile by embedding photos from Flickr or Picasa.
Create a page about you. Write a short bio in the About me tab, reveal your superpower, and tell people what you still can't find using Google.
Add your contact information. Share your information with your friends and family, so they always have the most up-to-date information. You control who sees it.
Add links to your other profiles and sites. Make it easier for friends to see your other content on the Web. You can link to Google content, including your Blogger blog, public Picasa Web Albums and Google Reader shared items as well as other pages on the Web such as Twitter, MySpace, Facebook, and LinkedIn.
Show your location. 'My places' includes all the cities you've entered on your profile. Your current location and where you've lived are displayed on a map.