The big news this morning is the impact of General Colin Powell’s surprise endorsement of Sen. Barack Obama for president. It’s not just that he chose one side over another (which happens to be his own party and good friend John McCain). But it’s the way he went about it, with careful forethought, after having taken his time to follow the campaigns and make his decision. He spoke eloquently and did his homework, and it was a big score for Obama.

As anyone who has career success can tell you, the power of endorsements can make the difference in landing a new job, securing new clients, getting into a competitive educational program, or catching the eye of upper management. Having someone with a great reputation vouch for you and your work ethic can open up doors. Here’s how to get one:

- Come right out and ask. The key is to be humble and say something like: “It was such a pleasure working on this project for you. It would mean a lot to growing my business if you could offer a testimonial of my services that I could put on my website.” Or, in a less formal working relationship, it could be as simple as saying, “I hope you were happy with my work. If so, it would be great if you could put in a good word with Mr. A.”

- Endorse someone else, and chances are, the person will reciprocate. As a freelance writer and editor, I’ve been asked by those I’ve worked with many times to act as a reference or provide a LinkedIn recommendation. And I’ve been happy to do it, not only because I value others’ work, but also because more often than not, they return the favor.

- A few more things: Don’t ask someone who barely knows you to endorse you, or don’t let too much time pass after you’ve worked with someone to ask. Also, if you need something formal in writing, such as a reference letter, give ample time so the person isn’t frustrated about having to make time in a busy schedule to help you out. Lastly, never ever ask someone to lie for you. It not only makes you look shady, but it can seriously backfire.

In following my own advice, I’d just like to say that if you enjoy this blog, I hope you’ll endorse us — comment away, tell your friends, tweet it, digg it, stumble it — it’ll be much appreciated!