To do items for a subsequent revision (?)

[davidlmobley]

Things it doesn't seem like we will get to for our initial version, but which would probably be good to include:

• "Blowing up" as a symptom of deeper problems/energy minimization issues; I can't tell you how many times I've had students spend a lot of time trying to figure out what's wrong with their constraint algorithm, when really that's just a symptom of the underlying problem (inadequate minimization, or a setup which is fundamentally flawed -- molecules sitting on top of each other, bad bonds, etc.).
• Make sure we reference appropriate Leimkuhler work on integrators

[JIMonroe]

Add more references to integrators section, especially good comparisons of properties such as accuracy (phase-space preservation), and energy conservation. Unbiased reviews not associated with methods development would be ideal, but as these seem rare a carefully-selected set of papers from the field would be appropriate.

[davidlmobley]

Provide a list of all the abbreviations/symbols.