Personally I've seen Tumblr's growth increasing rapidly in the last 12 months or so. It still seems to be used mainly by creative types (artists, musicians etc.

Personally I've seen Tumblr's growth increasing rapidly in the last 12 months or so. It still seems to be used mainly by creative types (artists, musicians etc.) but more and more tech companies are using it to host their blogs and I've noticed a lot of techies have also started hosting their personal blogs on it. I think the Dashboard works best with visual content rather than written content and this might be something holding Tumblr back from growing quicker (although changing this could lose them their USP). It would be interesting to see how the 'modern' Yahoo would handle the acquisition of such a popular site. I don't think there's anything this big that they've purchased in the last few years.