Not OP, but I'll fill in the blanks for you:

(1) Bubble: http://www.economist.com/blogs/babbage/2011/10/virtual-curre...

(2) Fraud and Robberies: https://en.wikipedia.org/wiki/Bitcoin#Theft_and_fraud

(3) Money laundering: https://en.wikipedia.org/wiki/Silk_Road_(anonymous_marketpla... , https://en.wikipedia.org/wiki/Bitcoin#Taxation

(4) Gambling: https://en.wikipedia.org/wiki/Bitcoin#Gambling

(5) Ponzi Scheme: See "Bitcoin Savings and Trust" in https://en.wikipedia.org/wiki/Bitcoin#Theft_and_fraud

Almost all of that was found in the Wikipedia article for Bitcoin (with citations). Please don't be too lazy to do your own research…