Add Sheet Online
   Search over twenty of the top software sites to find results.
   http://www.addsheet.com/search/osoftware.html

Capterra - The Enterprise Software Center
   Website that helps buyers find, evaluate, and select enterprise software. Browse or search the 28 software categories for products, and 19 vertical industries for products and resources.
   http://www.capterra.com/

DownSeek.Com
   Software search engine and directory, covering software categories for Handhelds, Linux, Mac, and Windows.
   http://www.downseek.com/

Economics LTSN
   Search the software database for software titles for economics, especially software for use in teaching and learning.
   http://econltsn.ilrt.bris.ac.uk/software.htm

KudzuKat's Software Search
   Convenient and reliable interface to the Internets software search engines. Look for commercial software, shareware, freeware, or device drivers.
   http://www.mindspring.com/~kudzukat/kks_soft.html

Netro
   Search all the top software sites from this page and get results without having to leave it.
   http://www.netro.com.au/search/software/page.htm

Progler
   A software crawler project. The site engine uses artificial intelligence and full text search technology.
   http://www.progler.com

QuickerWit
   Search for software by manufacturer, product, category or years. Track down manufacturers of old kit using archives back to 1994.
   http://www.quickerwit.com/

Shareware.com
   Search for shareware programs from more than a dozen downloadable software directories.
   http://www.shareware.com/

SoftCrawler
   Categorized metasearch for software, free and shareware. Additional options include advanced search, personalization, and filters for collated results and a multilingual interface.
   http://web2.aw-da-wicked.de/

Softdatabase.com
   Software community contains detailed information on 23000 software developers and distributors from 138 countries. Multiple criteria allow precise search.
   http://www.softdatabase.com/

Software Library
   Source for software searching by typing in keywords, phrases, or questions in the search box.
   http://softwarelibrary.com/

Software Search
   A collection of useful search tools to search for software.
   http://dragon.ep.usm.edu/~yuen/search/software.htm

Software Source
   Provides, a comprehensive database of software suppliers and products together with up to the minute news and features.
   http://www.softwaresource.co.uk/

TooLittleTime
   Quickly search all the top free software download sites all from one easy page.
   http://toolittletime.com/download.html

refdesk.com - Software Search Engines
   Search by utilizing nine different software search engines.
   http://www.refdesk.com/softsrch.html