Popularity of Bitcointalk.org went down significantly since summer:
http://www.alexa.com/siteinfo/bitcointalk.org


Bitcoin on Google trends over the last 12 months:
http://www.google.com/trends/explore#q=bitcoin&date=today%2012-m&cmpt=date

Bitcoin compared to some other terms:
http://www.google.com/trends/explore#q=%2Fm%2F05p0rrx%2C%20dollar%2C%20cash%2C%20paypal&cmpt=q

Also, positive correlation with price is obvious, which implies people are not truly interested in cheap coins and technology, but only care about rising price.