There are a lot of great sites out there that offer good documentation, tools, tips, best-practices, sample code, etc. for the API's they are publishing.

A sample:

• http://apiwiki.twitter.com
• http://developer.netflix.com/
• http://developers.facebook.com/
• https://affiliate-program.amazon.com/gp/advertising/api/detail/main.html
• http://code.google.com/
• http://remix.bestbuy.com/
• http://www.flickr.com/services/api/misc.overview.html
• http://products.wolframalpha.com/api/webserviceapi.html

There are some no-brainers that I think a good developer site should have:

• Hi level introduction
• Quick start guide
• API specific details - showing example request and responses
• Links to sample code and/or 3rd party libraries
• Developer registration (e.g. get an API key)
• Blog

But what about some other things:

• Online-Forum or Msg Board vs. Google Group (or similar)
• Galleries/ShowCases - spotlighting great apps built on the API - who has done nice galleries?
• Community Wiki - How do people feel about letting the community have edit rights on API documentation pages
• Online testing tools (like Facebook has a lot of nice interactive tools to simulate request/responses)

What are some packages that you would recommend to put this all together:

• pbwiki
• Google Group pages
• MediaWiki
• API vendor package such as Sonoa Systems that offers a customizable developer portal

So, to summarize:

1. What are some other great API developer portals out there
2. What are some nice features you like on them
3. Any recommendations on what to use to build these features out

Thanks, Will Zappos.com Public API (soon to launch) Product Manager