Torah Tools is a collection of utilities designed to assist Torah learning. Currently, Torah Tools consists of two programs: Daf test and Gemarah charts. Daf test helps you memorize on what page each Gemarah is to be found. It gives you a test to take after you learn a Perek or Masechta that requires you to choose the correct location for a displayed Amud of Gemarah. Gemarah charts helps you keep track of how many times you've Chazered over material by providing a chart with a list of all of the Perakim in the Mesechta, a list of the Dafim in each Perek, and just enough room in each box to mark off your Chazaros.
The Chemical Structures project aims to provide a complete set of 3D molecular structures in CML format. As CML format permits structural data and many properties to be included, each file also contains additional information, like molecular weight, boiling point, melting point, or InChI code. Data can be explored with a CML-aware software, like Jmol, or by using a Web browser.