Well, I typically look at a few metrics as PL fascinate me a lot. However, I'll be the first to admit I'm not an expert, so take everything below with a grain

Well, I typically look at a few metrics as PL fascinate me a lot. However, I'll be the first to admit I'm not an expert, so take everything below with a grain of salt. First I judge by new projects/tools that interest me. I don't see much ruby there, but a fair amount of python admittedly. This could be biased to what interests me, obviously. The second is people I know. Some are ex ruby devs, none still use it in their line of work. The third is job trends. Ruby, specifically Rails, is just down by any metric. A quick google search sent me to http://www.indeed.com/jobtrends/q-Ruby-on-rails.html http://www.indeed.com/jobtrends/q-Ruby-on-rails.html Again, I said 'seems' because it seems that way to me, not because it is fact.