[Robot] facebookexternalhit/1.0 (+http://www.facebook.com/ex

[datanasov]

Visit From: out.251.01.snc1.facebook.com (69.63.178.251)
Full UA String: facebookexternalhit/1.0 (+http://www.facebook.com/externalhit_uatext.php)

This is the robot that extract objects from site when somebody post a link. For more information read http://www.facebook.com/externalhit_uatext.php

[blogstalker]

This is a good thing when we are optimizing content. Social signals are making more and more of an impact in search results. We like visits from this bot, as it means that users are being directed to your page from a face book link. Social signals are great, and I highly advise checking your Facebook Analytics quite often if you are seeing constant visits from this bot. That's the knowledge you get for self taught IT stuff. How else would I have good material to submit to IT staffing agencies?