If you head over to the buy, sell or trade section of BHW, there are a huge number of extremely useful programs. The problem is that there are many that cost excessive amounts of money. Of course these programs are deserving of their price tag - after all they are absolutely jam packed with features, but have you ever thought that many of these features are unnecessary? The 'niche' I looked at the first time doing this was cookie stuffers. Many of them cost in excess of $500 with recurring monthly fees etc... they had referrer spoofing, double meta refreshing, flash stuffing and tons of other features that made them virtually perfect. But that was just the problem, there was no bottom bracket, no easy to use cheap option. I had no experience in PHP at the time, all I needed to do though was hire a freelancer. Now these people are saints, they are excellent at what they do and demand little money to do so. (I used php-freelancers.com btw, it's free) I paid a freelancer $20 to program a wordpress plugin called chocolate chip cookie stuffer (you might have heard of it ). Then I sold it for $10 each. The demand for it was huge and I soon found myself swamped with orders, while the fire has calmed down now (after over a year), I am still selling strong. My payment handler, click2sell.eu (I'd recommend using them highly), were awesome and I soon found my self around #17 on their marketplace leaderboards. Just remember to respect and stay loyal to your customers, make sure you answer any questions they have to the best of your ability.