Fortune * has just released its annualMost Powerful Women in Business list,and as always,it's an inspiring mix of female leaders kicking some serious a*.

In light of theongoing conversations around women (or lack thereof) in STEM roles,we're especially excited to see a number of female leaders in technology,including the much lauded and lovedSheryl Sandberg.

Sandberg,the chief operating officer of Facebook and author ofLean In(a book that has made her a global celebrity) came in at number five,and was also the subject of acover storywhere the magazine talks about how Sandberg found the time to do a book—and book tour—along with all her other responsibilities.The piece also states that "partially as a result of the book" Facebook has a record-breaking number of female interns this year,which bodes well for the future of women in tech...and future *Fortune *lists.

Also in the top 50?There'sGinni Rometty,CEO of IBM,who came in at number one for the second year in a row (she's currently trying to commercializeWatson,theJeopardyplaying supercomputer—how cool is that?).Yahoo's new CEO,Marissa Mayer(our girl crush of the moment and a formerGlamour Women of the Year honoree),took the eight spot after a much-talked-about year in which she made big changes at the company,including the $1.1 billion purchase of Tumblr.AndUrsula Burns,CEO of Xerox,slid in at number 13 for transforming the printer company into a hub for customer care and outsourcing.

You can see the entire list onFortune.com.Oh,and she might not be a tech leader,but we love that *Scandal *andGrey'screator and executive producer,Shonda Rhimes,joined the list at number 50!