Zisterne 2003 (Download-Version) 1.
'Zisterne 2003' is a program for determining the optimal size of your rainwater storage, providing the following features:
an assistent helps you to gather all needed information
expert mode for rapidly entering the required data
geographical support for measuring the average rainfall at your location
AdWords ROI Calculator 1.0 The Google AdWords ROI calculator allows you to determine the optimal spending level and return on investment for running an AdWords advertising program
