Stefan

<blockquote>
important: You can use this “plugin” even if you are not allowed to install plugins. To run this RSS FEEDER, its not neccessary to activate it.
</blockquote>
You only have to place the swf-file on a server (free-hosting..) and edit the embed-Tag. Finished! 
With the proxy-feature, you are allowed, to feed your RSS-Stream from anywhere. (Myspace etc.)
You also can get your RSS-Feed from free hosts wordpress.com blogs. (without upload or edit the template files or stuff like that.) 
You dont have to place a crossdomain.xml (thats useful, because in some cases thats not possible: if you dont have enough permissions.. etc) on your Server! (you can, if you want to disable the proxy-function. But you dont have to! 🙂 )

RSS FEED anywhere

> important: You can use this "plugin" even if you are not allowed to install plugins. To run this RSS FEEDER, its not neccessary to acti …

sleepm

Manage WordPress proxy in one page, you can set some domains that can be accessed through proxy. 
Also, http basic auth support.

WP Proxy

Manage WordPress proxy in one page, you can set some domains that can be accessed through proxy. Also, http basic auth support.

RSS FEED anywhere vs WP Proxy