Back in the 70s, my friends used to come over and watch in awe as I played games on our family’s little Mac with the cute multi-colored apple logo on the monitor.

My father was a successful computer scientist and programmer with NASA and NOAA, and so we were the first ones in our neighborhood to have a home computer.

Dad died more than 27 years ago. He had always advised me never to socialize with the people I work with; he believed people should keep their private life separate from their professional life. So I often wonder what this early adopter of computer technology would think about the cultural phenomenon that is social networking.

Many people thrive on putting their daily activities and innermost thoughts out there for the world (or at least their friends or followers) to see. Chances are good that a friend-of-a-friend is the friend of a co-worker, so it’s common sense to think twice before posting pictures of yourself getting your drink on or tweeting about how much you cannot stand your job.

Those of us in the public relations profession have always had rules about separating one’s personal and professional lives, especially when counseling C-level execs. We advise clients to think carefully before firing off a letter to the editor that’s based on personal opinion, since their position may be taken as representative of their company’s stance on a particular issue. Sometimes the two don’t match up, and that could be problematic.

Is that limiting free speech? To some degree, I suppose it is. But it’s worth the time to thoughtfully consider ways to express personal views that don’t cross the boundaries between home life and work life.

Now that the means to communicate quickly, easily and broadly have increased so dramatically, it’s more important than ever to think twice before posting your answer to the question: “What’s on your mind?”

What are you doing? A simple question that has started a micro-blogging revolution: Twitter.

At first, I was hesitant to join Twitter. I’d already stopped checking my neon-colored, disaster of a MySpace profile in favor of my clean, crisp Facebook page and wasn’t sure I wanted to commit to yet another social networking site. But after reading Clive Thompson’s “Brave New World of Digital Intimacy” article in The New York Times, I was compelled to dive into the Twitter pool. Thompson wrote that Twitter’s design makes updates “skimmable, like newspaper headlines, maybe you’ll read them all, maybe you’ll skip some.” I figured I could manage.

Six months later, I’ve come to embrace Twitter. Though I do not tweet every day, I like knowing I have the option to when I have something worth sharing with my 250+ followers. I don’t understand how some of the people I follow are able to tweet 20 or more times a day, but I do enjoy perusing their posts and learning new things in the process.

As a public relations professional, here are my top five reasons for utilizing Twitter:

5. Enhancing relationships. Maybe it’s your colleague based in another office, or a former client, but connecting with people you rarely see in person via Twitter is a good way to keep your relationship intact. Tweets fill the gaps between in-person meetings.

4. Instant research. Google is great, but when I want insight from influencers, I turn to Twitter. Pose a question about any topic and you’re sure to get intuitive replies from a wide range of people. Plus, it’s a great conversation starter.

3. Meeting new people. I have no rules for following people on Twitter – I’m open to following just about anyone (get rich quick schemers not included). Through Twitter, I’ve met a feisty journalist based in South Africa, a stay-at-home mom who blogs about environmentalism and a gentleman from Atlanta with a strong interest in fractals and mental disorders.

2. Monitoring the conversation. It’s important to know what’s being said about your clients and their competition. Twitter’s search tool allows for real time monitoring of posts, and as such, complements a traditional media monitoring service.

1. @skydiver. Peter Shankman’s urgent HARO queries help connect journalists and sources in record time.

Follow me on Twitter: @jleckstrom