Facebook has warned users to “delete e-mails asking you to open an attachment to get a new Facebook password,” in the wake of a new scam making its way around the web. Earlier in the week, security firm McAfee alerted users to such a threat, saying that because of Facebook’s size, the scam “threatens computers worldwide.” In this case, if a user opens the malicious e-mail –- which can appear to come from Facebook as a result of spoofing –- and then the attachment, they’re actually installing a password stealer that McAfee says can “potentially access any username and password combination utilized on that computer.” This scam should be easy to protect yourself from –- after all, Facebook would never send you a new password unprompted, let alone one that requires you to open an attachment. Nonetheless, it’s probably a good idea to warn your less savvy friends and family

Business social networking giant LinkedIn has been keeping busy in recent months. After surpassing 50 million users , the company hooked up with Twitter , announced integration with Outlook and launched its developer platform .

Media giant Nielsen Co. is selling eight of its Business Media properties to e5 Global Media Holdings, a new joint venture between Pluribus Capital Management and Guggenheim Partners