plugin that replaces garbage text with useful search engine friendly keywords

what is the plugin that replaces this in wordpress blogs with other words instead of the default crapp words... i know it is a plugin that can replace with real deal keywords to make ur blog more search engine friendly... please point a noob to the direct post if this was already posted already... ^_^

xxx.example.xom/?p=1

xxx.example.xom/?page_id=2

xxx.example.xom/?m=200901

to
xxx.example.xom/sandiego-black-singles

xxx.example.xom/sandiego-asian-singles

xxx.example.xom/sandiego-white-singles

 

It's not a plugin, but in the settings. I think it's under Settings->Permalink, and then you change to custom format and type in:

%postname%

 

No plugin needed.. permalink settings are the first thing you should change in wordpress.

 

ya...

This is already built in the wordpress...

Just use settings->permalinks

(remember the .htaccess file in the root folder to rewrite the urls )