Internet marketing and any marketing for that matter, is the life blood of any business. But your advantage on the internet is huge, cause of the low cost and ease. Internet has created more millionaires than anything else in the past 50 years! Ever since the Internet phenomenon, a lot of common folks have turned to home business. Opt-in email marketing sends bulletins, updates catalogs and many other promotional material for visitors to the site who have agreed to be updated as monthly, weekly or bi-annual. Opt in list building is one of the most important tasks you need to do if you would like to build a sustainable income on the internet. However this can be email list challenging as there are many ways to do this. You might be like a lot of other internet marketers and find it very hard to build a list. Well, instead of telling you what to do, I'd like to show you some thing NOT to do. After all, avoiding mistakes is just as important as doing the right things. Mistake #1: Building a list of random individuals List building involves choosing an audience that will be interested in what you have to offer. A more general email list is harder to sell to. Your list must be well-targeted and tightly-targeted. If you are to comprise consumers from different interest groups, then build separate lists for them. One highly-targeted is better than many random ones.