From Rayner Software:
NetShade is an Internet security tool which conceals your IP address on the web. NetShade will route your web connection through either a public anonymous proxy server, or NetShade's own dedicated anonymous proxy. (The latter option is available only to registered users.) This has the effect of masking your IP address as you browse the web. Anonymous proxies are becoming very popular in this age of heightened security and privacy concerns, and NetShade provides a very effective and straightforward interface for this.
What's new in this version:
Added "Classic" window mode. Uses less power on dual-GPU MacBooks.
On first launch, ask dual-GPU MacBook users if they want to switch to classic mode
Fixed a linking issue which caused crashes for some PPC users