Features:
* Small (125k Linux-x86 binary with HTTP, FTP and SMB support)
* Fast (measure for yourself, please)
* Scalable
* Uses platform-specific performance and scalability APIs
* connection keep-alive
* IPv6 support
* transparent content negotiation
* With optional directory index generation
* Will only serve world readable files
* Supports FTP and FTP upload as well
* CGI support for HTTP, also SCGI and FastCGI (over IP sockets)
* .htaccess support
* Can detect some common mime types itself, like file(1)
* Read-only SMB support