There is a pretty cool group called PS Village in the Bay Area, CA founded by Terry Jansen. She recently led a successful monumental effort to gather insights from 100 Professional Services leaders from various organizations (and sizes).
This eBook is fantastic! Each tip from the PS leaders is succint and focused on a specific idea or principle. The contributors speak from experience, which in my opinion, is the best flavor of learning; and they share their "experiments" with the reader. The ebook is free to download.
I was hoping to write a similar ebook but Terry beat me to it. However, this collective wisdom yet highly individualized and personal, is really great. I hope you enjoy reading it as much as I did.
– Harsha Raghavan