Who has created a Web service that serves up its data in one or more of

Hi Folks,

I am interested in putting together a list of examples for each of these:

1. A service which serves up its data to its customers in RSS format.
2. A service which serves up its data to its customers in HTML format.
3. A service which serves up its data to its customers in XML format.
4. A service which serves up its data to its customers in SOAP format.
5. A service which serves up its data to its customers in audio (MP3) format.
6. A service which serves up its data to its customers in video (MPEG) format.

Also, I am interested in examples of:

1. A service which serves up its data to its customers in two or more different formats.

If you know of a service which fits one of the above, please send me:

-        The name of the service

-        A 1-2 sentence description of the service

-        What format(s) does the service serve up

Thanks!  /Roger