People were very vocal about Duck duck go, and but after a week, noone talked about Duck duck go anymore. All the time, people kept using Google.

No doubt Blekko will soon be forgotten by most of us.

On my list of points to consider whether to use an certain search engine, the language it's written in doesn't make make the top 100. It's about as relevant for the user as the colour(s) of the cat cables they're using.