It's likely many of you are aware of CapWiz from Capital Advantage but just in case you haven't, a quick look.

CapWiz (it's available on several sites) offers a number of databases with congressional data, local political data, media info, and more. Almost all links allow you to contact a politician/reporter/etc. via email.

Three places to find the database:
1) C-SPAN [1]

2) The Hill [2] (a D.C. polical newspaper/web site)

3) USA Today [3]

Key Features:
+ Weekly Free E-Mail Alerts with Voting Records of U.S. Reps
+ Selected Legislation Listed at Bottom of Page
+ Media Database (organizations, reporters, producers).
The scope is impressive and useful for addresses and phone numbers. However, I found a few cases where it could be updated in a more timely manner. One example [4].

Perhaps the most featured filled version of the CapWiz database comes directly from Capital Advantage at Congress.org [5].

Features include:
+ Weekly Congress.org Update Newsletter
+ Congress This Week Podcast
+ RSS Alerts from Various issue-based Organizations (a directory is also a available [6])