Finally, welcome to the 20th century, [tag]LinkedIn[/tag]:
"It’s taken four years for LinkedIn to add photos, when every other [tag]social network[/tag] has done it forever. The site for business professionals has always kept a conservative, business-like tone. But although it says the decision has been driven by members, LinkedIn could not have escaped noticing that business people are using sites like Facebook to network both personally and for business. Adding photos ticks a box marked ‘we can be as friendly-looking as Facebook too guys’."