The Tweet Button is a small widget which allows visitors to share content and connect on Twitter.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
GoDaddy email provides a personalized address but protection against viruses and spam and includes tools like Calendar.
UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.