Be on the lookout for an email from "Blackboard Articles <email@example.com>", which was reported this weekend (example below). Like similar phishing emails, it attempts to trick you to click on the link (hovering over it displays a very suspicious non-Blackboard URL). Don't fall for it!
If you received this (or other phishing emails), report it as phishing to Google (from within the message, click on the down arrow to the right of the REPLY button and select "Report phishing"). Doing so forwards the message to the GMail Team for analysis and filtering.