Tag Clouds: Linear VS Logarithmic Interpolation

One of the topics our audience research is to figure out using linear interpolation versus logarithmic interpolation for the font-size formula. So, we took the top 1 million domains by traffic in the US from Quantcast for a particular date, grouped the domains by the tld (top level domain) and then created the following clouds one with linear interpolation and the other with logarithmic interpolation. Notice how the 'com' tld which (obviously) has so much count is all you can see with a different size when linear interpolation is used. This is when it may be beneficial to go with the logarithmic interpolation.
Logarithmic Tag CloudLinear Tag Cloud