Covered Calls - Free data for covered call investing, including a calculator for analyzing positions. CoveredCalls.de - Daily updated lists of covered calls and tools. OptionMetrics - Research for individual investors. Intra-day quotes, analysis, implied volatility, strategies, and tutorials. AllInTheMoney.com - Educational tutorials for the covered call strategy. Subscription service available. Optionfind.com - Stock option hedging and covered call search engine. PowerOptions - Subscription based option research service. SchaeffersResearch.com - Market analysis and commentary, sentiment research, option quotes, educational and trading tools for stock and option investors. Optionetics.com - Provides options trading education and advisory services for options traders. Features commentary, publications, and options portfolios. Subscription available. QQQ Options Trading - Signals to trade QQQ options. The basic technology behind this trading system is volume technical analysis. IVolatility.com - Historical and implied volatility for options and equity derivatives. Tools for analysis and trading. Membership required for certain features. The Moon and the Sixpence - The analysis of options trading, the markets, the economy, and economic theory by a rational individualist. Option Research and Technology Services - Methods for observing historical and implied option volatility.