neither of those sites told me anything. they are some type of search engine? I imagine your advertising your sites instead of just defining a simple term?
Proxy website is a site where a visitor can use it to bypass restriction on their network. Most user are from schools and those at work. It use a script such as phpproxy, glype, zelune, cgi etc. Let's say you're at work and want to surf youtube or myspace but the admin blocked these sites. So, by using a web proxies, you can go to the site with no problem. Web proxies have some options which are useful. One of them is strip title (phproxy). by checking this option, your browser will not show the title thus when you minimised the browser, people won't get suspicious. there is a lot of definition of web proxies, what I wrote here is just a fraction of its information. hope these helps.