Internet Archive Search - Firefox Addon - Search add-on for Archive.org. Internet Archive: Universal Access To All Knowledge.
Internet Archive is a non-profit library that was founded to provide permanent universal access to all knowledge. To accomplish this, the Archive actively collects, creates and provides access to archives of digital media
Hotelbooklet.com - Compare Hotel Rates - Firefox Addon - A free hotel comparison tool which compares hotel offers of more than 30 top reservation sites and shows all available rates. It is the easiest way to find the cheapest hotel room rates over the Internet and make a direct booking