bulia byak reported this on the Inkscape Mailing list and I felt it was worthy of attention here.

The number of Inkscape searches on Google has overtaken the number of Xara searches - which would suggest that there is more interest in Inkscape. And, of course, not all searches for Xara will be searches for the graphics application so the situation is even better than it looks.

Red = Xara
Blue = Inkscape

Click the image for the breakdown of the data.