Mark,
Please see my response below:
>Since Options Lab is YOUR site, why not tell us more about it?
The Options Lab supports dynamic charting for most common used options strategies. The Options Lab tries to make sure everything you ever need about a options strategy in ONE screen, all within a few clicks away.
>Which variables does it allow us to change? Date? Stock price? Implied volatility? Skew?
The IV, greeks, underlying, date and quick loss/gain analysis,
+/- 30% analysis
>What does it do especially well?
When you are online, click on the Online tab, then enter a ticker such as "rimm", then the Options Lab will do everything for you.
Choose any strategy on the left hand side. you sill see everything on the right hand side changes. It will supports up to four legs, plus underlying. The days to expirations are shown on the top, update 10 14 months from now.
>Must one register to use it?
It will requre registration later on.
Thanks