Apache is a free and open-source cross-platform web server software.
FrontPage is a program for developing and maintaining websites.
Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.
MS Word is a word-processing program used primarily for creating documents.
PayPal is an online payments system that supports online money transfers and serves as an electronic alternative to traditional paper methods like checks and money orders.