Social networking site Facebook has won an initial victory over its potential rival Plaxo, the contact utility which, withPlaxo Pulse, is aspiring to be another social networking site. According to ZDNet, it all came about when bloggerRobert Scoble attempted to export the details of his 5,000 contacts using an alpha version of Plaxo’s screen-scraper. His account was blocked for a violation of service terms, and onlyreinstated after he agreed to stop. Plaxo objected that the utility did nothing more than any other importer, including Facebook’s own, but to no avail. "For some reasonFacebook has gone to inordinate lengths to prevent users from getting data out of Facebook. What’s good for goose is apparently not good for gander," John McCrea, vice president of marketing atPlaxo, told ZDNet. Facebook claimed that the automated tool made it look as though a spammer was harvesting addresses. However, there’s another twist to this story. Rumors havebeen circulating that Plaxo, which is valued at $200 million, is for sale, and Facebook, which has been valued as high as $15 billion, is interested in adding a more business-oriented site to itsempire. Could this be a power play before a takeover? Time will tell.