The IDGF-Support Project is giving the IDGF a boost in two important areas. Firstly, it helps considerably with increasing the number of citizens that donate computing time to e-Science. It will do so by targeted communication activities and setting up a network of "ambassadors". Secondly, it helps universities' e-infrastructures to include otherwise idle PCs from their class rooms and offices. In addition, IDGF-SP collects and analyses data that will help deploying idle PCs in an effective and energy efficient way. It has been shown that Desktop Grids can contribute to Green IT if used in the correct way. IDGF-SP is collecting data to underpin and advocate best practices.