Another technical post today, giving another approach to creating Venn-like diagrams without the color limitations of semi-transparent shapes (older post here).
  • Draw an extra shape exactly the same size as the others, in the color you want
  • Ctrl-X it away and paste it back in as a PNG (paste special, PNG)
  • Crop excess bits away
  • Overlay them
Blog visitor AdamV provided a link to this Microsoft PowerPoint 2010 feature that will make it very easy to combine, intersect and subtract shapes.