Below is an example of an email that asks you to click on a link and log into a "Google Docs" account to access an unspecified document.
If you hover your mouse over the link, you will see a pop-up with the actual website address (URL). You can see in the example below, that this is not a Google related address. Also, note the generic subject line and the undisclosed addresses. This is an attempt from a spammer to either get your login formation and/or install malware onto your computer.