turn based

gFTP is a free multithreaded file transfer client for *NIX based machines.

QuickCam is another security application based on motion-detection.

Echo - An Email-based approach to file storage and sharing.

Online based spyware remover.

Fully-featured web-based trouble ticketing system with built-in database

Edit your webpages in visual and code-based modes.

Wordstar was a very powerful, compact DOS-based text processor.

Best Accounting Basic, based on Best CashBook, gives all financial statements.

Excel macro compares row equality of 2 lists based on 1 to 4 columns

JBO SpeakEasy 121 is a private text based conversation (chat) system.