Yes Facebook is an important part of your everyday life, but that does not mean it should be an important part of your investment portfolio. Just tread carefully because as an investment Facebook may not be worth the hype.

For starters, we don’t know how much the shares will be issued for, so we don't know if they'll be worth it. Current betting is that they'll be from $30 to $35 each, which will value the company at around $100b. What is certain is that founder Mark Zuckerberg will become very rich with his stake valued at $24billion, and roughly 1,000 Facebook employees will be rich as well, as they'll become instant millionaires.

But with a company like this, you worry that it could be floated at the top of the market.

On the surface its numbers are mind boggling.

• 845 million active users

• 483 log on every day

• 250million photos are uploaded every day

• 20million people install Facebook apps every day

• Finally, there are 70 different language versions of Facebook.

There's no doubt ace book is a social media phenomenon. But it is a money making machine, and will it keep being a money making machine to justify its share price?

Now lots of people say that there's plenty of scope for it to earn more revenue through advertising, through premium services, and through selling its data. And they could be absolutely right. But that's not certain, and you would hope that would be delivered to justify its current valuation, which is way more than Google.

So wait and see what the price is going to be before doing anything.

If you're still keen, contact a US stockbroker with an office in Australia like Morgan Stanley and Meryl Lynch to see if they've got shares in the float and have any spare to sell to you.

If not, you can always buy the shares as they are listed on Wall St through online brokers like Commsec and etrade, or investing in an Australian fund which invests in US shares.