xfriend   
http://www.xdot.de

xfriend, the local search engine for your PC xfriend is your search engine for desktop searches at no charge. xfriend's search functionality includes full text search and meta data search. Search results will be displayed within seconds and can be categorized by file type, date, size etc. Additionally, xfriend searches the internet, product catalogues, internet news (RSS-feeds), emails and other search services. xfriend offers a P2P-like search in external shared folders of other xfriend users. Therefore, xfriend enables you to set up a client-server environment easily. At the moment xfriend supports more than 50 file types and their meta-information. For example, xfriend indexes jpeg, mp3, doc, xls, pdf, txt and other formats. xfriend is made on pure Java. It runs on any popular operating system such as Windows or Linux. You just need your webbrowser. Immediately after installation xfriend will be available as a web-service on your computer.

Email Spider   
http://www.troyeesoft.com

Advanced and powerfull tool for extracting email, page title, page URL from website, popular search engines (google, altavista, excite, yahoo, infoseek etc.) using keywords for targeted consumer, internet marketing, website promotion, list management and research. You can build business mailing lists for email marketing, advertising. Using Email Spider you can not only limit spdering depth, you also can cut off unnecessary text or phrases during extraction. It is very flexible and can be used to extract data from internet using file containing list of urls. You can filter the extracted email with Email Spider according to your business needs. You can also save data in different format (csv, html, Excel or plain text).

Effective File Search   
http://www.sowsoft.com

Effective File Search (EFS) is a powerful but easy to use search tool. Search any files on your computer or local network. Search in folders or results. Support of all popular file formats (MS Office files, PDF, RTF, HTML and many other text and binary files). Search filters include date and size, containing text or hexadecimal codes. You may use Boolean operators to perform multiple keyword searches. All results and parameters can be saved to file. Other features include export, Windows Explorer functionality (icons, context menus, drag and drop) and file operations (copy, rename, delete etc.). You can automate many search and file management tasks and save a lot of time.

EmailSpider   
http://www.troyeesoft.com

Advanced and powerfull tool for extracting email, page title, page URL from website, popular search engines (google, altavista, excite, yahoo, infoseek etc.) using keywords for targeted consumer, internet marketing, website promotion, list management and research. You can build business mailing lists for email marketing, advertising. Using Email Spider you can not only limit spdering depth, you also can cut off unnecessary text or phrases during extraction. It is very flexible and can be used to extract data from internet using file containing list of urls. You can filter the extracted email with Email Spider according to your business needs. You can also save data in different format (csv, html, Excel or plain text).