Perhaps the biggest and best usenet indexer right now.

Useful for finding quality shareware files.

These guys RARELY open for registration so grab a free account while you can. Not sure if this is really a deal, but it is definitely a limited time offer. Last time they opened for registrations, it was closed 24 hours later.

Plans:

Free - 50 API hits and 5 Downloads Daily

10€/yr - 1000 API hits and 100 Downloads Daily

20€/yr - 4000 API hits and 2000 Downloads Daily