Loopion

is a powerful file search engine with deep search to contents such as:

• Torrents: torrent
• Audio: mp3, wma, wav, oog, aac, ope.
• Video: avi, wmv, mov, flv, mpeg, divx, rm, srt, mp4.
• Document: txt, doc, pdf, xls, ppt, rtf, xml, chm.
• CD images: iso, bin, nrg, cue, dmg.
• Archive: zip, rar, ace, rpm, exe, deb, bz2.
• Typography: ttf.
• Image: jpeg, gif, png, psd, ai, fla, swf.
• Databases: sql, mdb, db.
• Roms games: nes, nds, n64, rom, gba, ngp

Pretty useful for some hard to fine stuff…

They have many other search engine:

• Search Webcam http://www.camhacker.com/
• Search Video http://www.searchhacker.com/videosearch
• Search Answers http://www.searchhacker.com/answers/
• Search Lyrics and MP3 http://www.searchhacker.com/mp3-lyrics/
• Search Wallpapers http://www.searchhacker.com/wallpapers
• Search Password (interesting and useful) http://www.searchhacker.com/passwords
• Search Jobs (it’s not illegal) http://www.jobgeni.com/
• Search for Price http://www.searchhacker.com/pricesearch

Give it a try!