Whats a proxy?

your permission given to someone to act on your behalf

Someone that is assigned to act on your behalf.

http://www.thefreedictionary.com/dict.asp?Word=proxy

1. authorized capacity of substitute: the function or power of somebody authorized to act for another person

2. substitute: somebody authorized to act for another person

3. authorization document for stand-in: a document authorizing somebody to act for another person

4. law stock exchange document authorizing vote on another's stock: a document authorizing somebody to vote on matters of corporate stock on behalf of somebody else

http://encarta.msn.com/encnet/features/dictionary/DictionaryResults.aspx?refid=1861736247

1 the authority to represent someone else, especially in voting. 2 a person authorized to act on behalf of another. 3 a figure used to represent the value of something in a calculation.

http://www.askoxford.com/concise_oed/proxy?view=uk

1: the agency, function, or office of a deputy who acts as a substitute for another
2 a: authority or power to act for another b: a document giving such authority; specifically : a power of attorney authorizing a specified person to vote corporate stock
3: a person authorized to act for another : "procurator"

http://www.merriam-webster.com/cgi-bin/dictionary?book=Dictionary&va=proxy

Proxy may refer to something which acts on behalf of something else, as in:

Proxy card, a substitute card used in trading card games when a player does not own the substituted card and also can occur when proxy cards are not tradable.

Proxy (climate), a measured variable used to infer the value of a variable of interest in climate research.

Proxy marriage, a practice formerly common amongst European monarchs, where one party is not present in person to their marriage to the other.

Proxy murder, a murder which the murderer commits at the behest of another.

Proxy occupation, a military occupation where the occupying power directs an ally to undertake the occupation of a particular area.

Proxy pattern, a software design pattern in computer programming.

Proxy server, a computer network service that allows clients to make indirect network connections to other network services.

Proxy bypass, a website to get past websites which are blocked by an administrator.

Proxy (statistics), a measured variable used to infer the value of a variable of interest.

Proxy voting, a vote cast on behalf of an absent person, which can be:
one way of casting an absentee ballot in some elections, or
a way for parliamentarians to vote on a measure even if not present.

Proxy war, a war where two powers use third parties as a substitute for fighting each other directly.

http://en.wikipedia.org/wiki/Proxy

A Proxy site is a web pages which allows you to browse your favorite web sites -- even though your access to those web sites might be blocked http://www.tech-faq.com/)

here are some links something useful for me when browsing some blocked website...

http://jbuddz.info/
http://innovision.jbuddz.info/
http://speedproxy.jbuddz.info/
http://isurf.jbuddz.info/

http://www.youhide.com