Issues with using ESCs and brushless motors

Google searches haven't returned any useful information as to what input they expect. Any help would be much appreciated.

Google advanced search of this group.

http://www.google.com/search?hl=en&as_q=esc&as_epq=&as_oq=&as_eq=&as_nlo=&as_nhi=&lr=&cr=&as_qdr=all&as_sitesearch=http%3A%2F%2Farduino.cc%2Fforum%2Findex.php&as_occt=any&safe=images&tbs=&as_filetype=&as_rights=