I just finished reading Brazen Careerist by Penelope Trunk and I just have to say that she gets it. She really understands the changing attitudes that Gen X & Y are bringing to the work place.
As a generation X'er I was taught by my elders to get a job with a good company work with them for 25 years and then retire. Sadly that's not the way that the world works anymore. I still remember the near coronary that I gave my father when I told him I was leaving Nortel after two years to pursue a job at a small private Ottawa software firm.
Now you need to be responsible for your own career and you can't expect your company to take responsibility for you. This book is that handbook that everyone from my generation should read.
For more of Penelope's writing please check out her blog.