Dropbox last week announced that it has added webhooks functionality so that application developers can configure Dropbox to notify their apps whenever their app's registered users perform an action that results in a file change.
If you run a website, like many of our readers, and you have an account system, you probably have problems with spam. One of the main sources of spam is users who register using disposable e-mail addresses. These can be generated by spammers programatically, using services like the Guerilla Mail API I covered previously, and used to make tons of accounts to try to get blog spam through. If this is a problem for you, the DEA Filter API can help.
Box has introduced the Box File Collaboration API, a new API that allows developers to manage access to files in applications. Developers can now control which users can access specific files. The API was created to support a recent update to the Box Notes collaborative note taking application.