Working Mother magazine has released its 2008 list of best companies for moms and those to be.

Arnold Worldwide is the only ad firm to make this list. Why? For starters, their 8 weeks of partially paid maternity leave and "phase back" to work program. New dads and adoptive parents receive two weeks. Nice. The magazine also touts the agency's compressed workweeks and summer Fridays, as well as workers ability to alter their hours on a daily basis if they like.

Plus, the Working Mother provides a snap shot of how women fair company wide and ain't to shabby:

Women managers/execs 117
Women among top earners 36%
Women on board of directors 43%

Congratulations Arnold.