LemonWire is a file-sharing program on the Gnutella network which enables you to exchange any type of files
through the Internet with millions of other online users. First and foremost, LemonWire is designed to be fast, reliable
and secure. It supports the latest Gnutella Technologies, including Swarm Downloading, Upload Queuing, Partial
File Sharing, Ultrapeers, Metadata, File Hashing, and more. LemonWire allows you to search for multiple files
simultaneously, is available in several different languages, and is most famous for its attractive ease-of-use and cross-platform compatibility.

Editor review:

LemonWire is a P2P file exchange application, that in this case uses the Gnutella network. This client is based on others better know likeBearshare o LimeWire. The advantages that it offers include small disk space, and a simpler use (easy interface etc)

Also, in LemonWire you can find some options that aren`t in other similar programs, like detailed searches (with filters so that only determined file types appear), or a high speed, not only in downloading but also in intermediate processes like connecting or source searches. As ever, with all these types of P2P programs, you should try it first and evaluate the results with your particular computer.