[vidarh]

Those spikes are curious, so let's add a couple of other languages:

http://www.indeed.com/jobtrends/q-rails-q-ruby-q-javascript-...

Seems like this is likely to reflect something other than changes in language popularity. Frankly the data doesn't seem very interesting without correcting for other factors such as total volume of jobs.

Overall, Ruby looks pretty much as popular today as 3 years ago to me from that data, though perhaps with Rails in a downwards trend (awesome - I love Ruby, but finding Ruby work that doesn't imply Rails is harder, and I don't like Rails).

But it's besides the point anyway. I simply explained why someone mentioned Rack, I don't particularly care either way (probably because I don't really care about Convox Rack - I'd never use a single vendor solution like this, and haven't exactly hidden how overpriced I find AWS in past comments).