Main reason i think Linkedin doesn't have other exact clones. 1) Lengthy account creation process - What is the motivation, again? 2) They got first and got th

Main reason i think Linkedin doesn't have other exact clones. 1) Lengthy account creation process - What is the motivation, again? 2) They got first and got the Industry respected people(Bill Gates...) *3) There in no stickability - you don't share stuff, you don't update status..it's just there(now they have integrated some twitter like non-sense) As for competition anyone who can create a profile page will do, FB, Twitter, I am sure there are very many.