It may take you a while, but you know 100 people. Some people can write this list out pretty quickly, but others may have to really think about it. Regardless almost everyone can write a list of 100 people they know.
With platforms such as Facebook and Twitter gathering 100 friends is much easier today than it was 10 years ago.
When you launch your business, notify your 100 friends, but don’t be too pushy otherwise you may turn them off. If you write an email, don’t mass send it. Copy and paste it each time with a personal message to your friend. It will make them more apt to remember and respond to it, plus if you send a mass email it may end up in their junk mail.
Let your friends know that even if they don’t need or aren’t interested in the product that you would really appreciate if they could share your contact info with anyone they think might be a potential client.
Post your business on Facebook (as long as your policies approve of that) and limit your business updates to once a week or twice a month. If you post too much, your friends will inevitably get sick of hearing about it.
See who responds to your email and make sure and for the ones that don’t, pick up the phone and give them a call. Simply ask if they got your email and once again (don’t be pushy) just ask if they would mind helping spread the word to their friends.
If you are able to mail samples to 100 friends even better. You don’t want to get too elaborate or it will cost too much, but even if you can do a business card with a hand written note and a sample of the product you are selling, it will create an impression. They may not buy anything at the moment, but they will remember that more than the email.