Here's how you can use Ubuntu 12.10 to search your online accounts, as well as your Ubuntu system.
1. Click on System Settings in the Launcher.
2. Click on Online Accounts.
3. Click on the kind of account you want to set up, you can choose from the following types.
4. Type in your user ID and password.
Now you can search your online accounts, as well as your computer by using Ubuntu's search tool.