Are you blocked from using certain sites? Try these

The final option you have left one your administration has blocked all the tunneling clients.....

Proxy websites.....given below are lot of links..clik on anyone link and surf happily....

RECOMMENED:: HTTP://www.kproxy.com
excellent site with 10 servers and fastest proxy which can b used 2 open even orkut...
You can also subscribe to circumventor websites which are provided by peacefire.org like I have on my Fivepoint someone proxy
THE following websites may b php based and may not open orkut.....bcoz of the java script in it and https protocol...but will open myspace and other social networking websites.........

courtesy::fastandloud.com...the previous post has labnol--digital inspiration blog...
Use a proxy service to enter the sites.
Use one of the following links & enter your destination URL.

link1
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A lot of proxy sites are also available on net...go to google and get them

Orkut needs https and ssl supporting proxy ,cookie enabled browser, and java script support...so very few sites support opening it

If your admin is continually scanning and blocking proxy sites u use...join circumventor network...register for mailing list from sites like www.frozenthunder.com or www.magictrainstation.com and use the new sites which updates frequently...but thr is a chance if ur admin joins mailing list like mine...im sorry

Reverse DNs Methods:::

You can try to get sites ips and use them 2 browse websites.....u can use this even for proxy sites also.....Site for getting Ip adress of websites is www.dnsstuff.com