Developers of several popular Twitter apps take a broad look at what all you can do with the Twitter API and also what it really takes to make a successful Twitter app.
Questions Answered:
What are the broad categories of Twitter's APIs and what do they have to offer?
What are some tips to handle caching of Twitter data?
What are some tips for scaling Twitter apps?
What client libraries are available?
What is OAuth and what are best practices around using it with Twitter?
What makes a good Twitter app?
What are some monetization strategies for Twitter apps?
What are some promotional strategies for Twitter apps?
What are some gotchas in working with the Twitter API?
How can I integrate Twitter functionality into other apps?