Lightweight alternatives to NHibernate

Question

NHibernate is not really a good fit for our environment due to all the dependencies. (Castle, log4net etc.)

Is there a good lightweight alternative?

Support

Answer 1

Massive - https://github.com/robconery/massive

or

PetaPoco - https://github.com/toptensoftware/petapoco

Both are a single .cs file with no dependencies except what's in the GAC.

(full disclosure, PetaPoco is something I wrote)