Ndebele (South) spell checker - The Ndebele spell checker allows you to check spelling in Ndebele and avoid typing errors in Firefox and Thunderbird.
Now you don't need to see your Ndebele text underlined in red and you can be proudly South African
Neil's RPN Calculator - This Scientific calculator uses RPN Logic (Reverse Polish Notation) similar to the HP Engineering Calculator. For example: To add 2 and 3 use "2 Enter 3 +." Everytime you press Enter it adds the number to the stack
New York Public Library Search - Search the full catalog by title, author, subject, keyword, etc.
The New York Public Library (NYPL) is one of the leading public libraries of the world and is one of the United States's most significant research libraries
Northern Sotho spell checker - The Northern Sotho spell checker allows you to check spelling in Northern Sotho and avoid typing errors.
Now you don't need to see your Northern Sotho text underlined in red and you can be proudly South African
NumberX is a mathematical puzzle game that will challenge your mental math abilities!
You are given four random numbers, between 1 and 9, and you must put them all together using the basic arithmetic operators in such a way as to arrive at a given target random number.
Every puzzle has a solution
Omgili's Realtime Search - Firefox Addon - Omgili's real-time search engine finds for you the latest stories and links about any topic. By analyzing the posts on Twitter, FriendFeed and identi.ca, it prioritizes the hottest links by taking into account the number of users posting the links and the frequency by which the links were posted
OpenMedSpel is a free and open source medical spell checking dictionary released under a GPL license.
OpenMedSpel includes nearly 50,000 medical terms ranging from abdominis to zygomatic, which allows you to concentrate on your work instead of looking up words in a medical dictionary that are not in a standard USA English spelling dictionary
Opie Sheet (formerly Sheet/Qt) is a spreadsheet software with many features such as doing mathematical and statistical calculations, sorting, formatting cells, etc. It is GPLed, so you can distribute it freely. Furthermore, it is developed for Qtopia Worldwide Developer Contest and has been a Beta Winner in the contest