For language students FL offers:
- Putnam, Frederic Clarke. Hebrew Bible Insert: A Student’s Guide to the Syntax of Biblical Hebrew. Quakertown, PA: Stylus Publishing, 2002.
- Chapman, Benjamin, and Gary Steven Shogren. Greek New Testament Insert. 2nd ed., revised. Quakertown, PA: Stylus Publishing, 1994.
For those of us just starting to deal with manuscripts and variants, we need an additional cheat sheet that give the sigla and the standard typographical conventions. The alternative, making the sigla show info on mouse over, is a far more expensive endeavor. I'd trust Rick B. to get this one out quite quickly.