I had to check this out on Google Trends for myself. Not that I ever had any doubt.
Depressing, right? That one company can come to dominate over a generic word. Well, here’s a little perspective…
Yup, that ship has already sailed.
For posterity, here’s a zoomed-in view of the Google Trends data as of October 2012. ‘Tumblr’ hasn’t overtaken ‘blog’ – yet!