flex engine

APE is a free AS3 open source 2D physics engine for use in Flash and Flex.

Fluid Dynamics Search Engine is an easy-to-install search engine for your site

Get top search engine rankings with this search engine optimization wizard

Paradox Engine: fast load the any Paradox table to MS Jet/ADO datasource

Wallpaper Engine enables you to use live wallpapers on your Windows desktop.

A free index-based network search engine that indexes shared files in your LAN.

Search engine for your Internet or Intranet Web site.

Create a search engine to search within your own website.

An open source, high precision corporate search engine based on Apache Nutch.

YaCy is a scalable web search engine