Update: This post was originally posted at ArabCrunch  with a permission to post it here, I apologies for forgetting to mention this.
3 weeks ago when Linkedin blocked all Syrian IPs users, but they were able to access the site by using IP changing programs (such as Tor ), but in the last days, Linkedin blocked all Syrian users even if they changed their IPs, and when the users try to access the website this message appears to them:
Access to this account has been suspended. Please contact Customer Service to resolve this problem
He also said that once you email Linkedin customer service, they will tell you, your account was blocked because you are Syrian.
For those who do not know Linkedin: it is a professional social networking, like facebook but for the business users.
A source in Syria confirmed to ArabCrunch  that linkedin is behind the block, the source back this because according to them, when trying to access linkedin.com the source got” TCP error” with this message:
A communication error occurred: “”
The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time.
For assistance, contact your network support team.
The source noted that when trying to access the websites that are blocked by Syrian government like facebook, the source only gets a blank page.
The source accessed the website via a proxy program and it worked but could not go any farther.
According to sources in Syria, many US companies blocks their websites to Syrian users, Like Google  and Sun Microsystems , who both blocks all types of download from their websites, also Google blocks code.google.com a setback for Syrian developers.
“The Syrian user fears the day when he cannot access Gmail or Google search engine.” Anas said in the post, and I also fear this because I love Gmail so much.