Regarding locating Internet Service Providers, probably the virtual
Grandaddy of online ISP lists is at:

    http://thelist.iworld.com/

Also, I have found an interactive 'web site which lists Internet Service
Providers:

    http://www.vex.net/isp/

Most of the Internet search engines such as Alta Vista can also narrow
down a search for local ISP's, as with a simple search for: [SAN DIEGO
ISP]. When researching local ISP's, be sure to inquire their user-to-modem
ratio.  Many folks recommend no more than a 12-user/modem ratio.  Even
better is a "No Busy Signal" policy, as an ISP in our town provides!

Cheers.

Pete Woodworth¶
http://www.calpoly.edu/~cwoodwor/nick.html