Volatility trading service uses strategies based on VIX futures roll yield and ETFs/ETNs such as VXX and XIV. The VIX Strategies website also has some useful educational articles about VIX trading. Twitter: @VIX_Strategies
The Volatility Made Simple blog tracks the performance of various volatility strategies across the current expiration month and the year to date. Their own volatility trading strategy is also offered elsewhere on the site.
