Some application developers request access to your Twitter account in order for their applications (e.g. Pandora, Mashable, TweetMeme) to work.
Here is an example of the application TweetMeme asking you to grant it access to your Twitter account:
Ideas and Concepts from Damian Davila
Some application developers request access to your Twitter account in order for their applications (e.g. Pandora, Mashable, TweetMeme) to work.
Here is an example of the application TweetMeme asking you to grant it access to your Twitter account: