Back annotation of power in DC
http://www.tkt.cs.tut.fi/tools/public/tutorials/synopsys/pwr_est/gspe.html#mod_tb
Cadence (RTL Compiler & Encounter)
http://people.virginia.edu/~ll2bf/docs/various/flow_example.html
Despite the fact that it typically buggy and broken, Encounter has a "Foundation Flow" wizard to generate the place and route scripts.
http://uwvlsi.wikispaces.com/HDL_synthesis_flow_tutorial
Enumeration of file formats used by digital tools
http://www.vlsi-expert.com/2011/02/different-file-formats-file-extensions.html