Internet search engine giant Google has added another acquisition to its list of takeovers, and this time it is a start up firm which developed web-based world processing software which lets users edit documents simultaneously, AppJet Financial and other terms of the deal have not been disclosed.

Confirmed by AppJet on Friday, via a notice on the company's official website, the firm would be joining the Google Wave team, the search company's "nascent online communication service that enables people to share text messages, photos, videos and maps".

Google Docs, the firm's "online collaboration software", takes anywhere between 5-15 seconds to process changes, i. e., this is the amount of time that can lapse before the changes made by one user appear on the screen of other viewer(s). Via AppJet's "EtherPad word-processing software", reportedly, these changes would be transmitted "at the speed of light".

Over the past few weeks, Google has acquired many smaller firms to incorporate their services and make its own engine better, including online telephony firm Gizmo5 Technologies Inc., mobile advertising group AdMob Inc., and display advertising startup Teracent Corp.