Wordfence - Comprehensive security plugin for WordPress.
MegaDownload - MegaDownload is an easy to way platform to search and download files from the leading hosting sites on the internet.
Rapidshare Search Shared Files - Rapidshare Search Shared Files
FilePursuit - FilePursuit is probably the most sophisticated platform that is offering a best in the class search engine for file links.
DocFetcher - DocFetcher is a portable German/English open source desktop search application.
uvrx - UVRX is an independent search engine for finding files from the leading shared files servers on the internet.