In many walks of life we often see “monsters” that kind of gobble up their peers.

We’re not talking about Madonna and all of the children of Africa she can get her hands on. Nor do I refer to “Top Gun” versus any other film of 1986, although Tom Cruise sure is dreamy.

No, Wal-Mart* or Home Depot* are probably the best examples in terms of what they’ve been accused of doing to mom and pop stores.

And if you’ve worked in public relations and tried to “pitch” a story about a charitable gift, you know that Warren Buffet’s $50 billion gift to Bill Gate’s foundation was similar in that it dwarfed every other charitable donation making them appear worthless by comparison.

And in social media, there is Facebook. Like Wal-Mart, it’s become everything to everyone, and Facebook – at least for now – is making other social networks seem somewhat irrelevant.

It’s nothing new even in the online world. There used to be several dominant search engines. Now Google is a verb.

But indeed, TheDeal.com just reported statistics from Nielen’s “The Global Online Media Landscape” and found that in the last year, people somehow found a way to spend 73% more time on Facebook Inc. and other social networking sites. That, and consider people spend on average three-plus hours per day on the social networking site, and its fastest growing demo is women age 55-65.

Facebook is a beast.

The question is, what will happen to the other communities out there? Aside from the American Mustache Institute and the Bacon Institute, will they become irrelevant? Will people build communities solely through fan pages on Facebook as some brands are beginning to do now?

Who knows? All I can guarantee is that whatever occurs, it will all change within two years because after all, what was Twitter two years ago?

*Note to employees of Wal-Mart or Home Depot: I’m very much a capitalist and therefore think you should do what you want when you want. No accusations here. I’m just restating what’s been said thousands of times. Plus, I shop at your stores weekly…when I’m not shopping at Target.