These examples are so you could get a general idea of how easy it is to come up with an idea or theme for your own website.

Real life friends who've set up websites and I want to make it clear, they are not affiliated with this site:

• FieldsNetworks.com - Hosting services - Built by an IT Professional who travels the world consulting.
• BadMets.com - For the disappointed NY Mets fan.
• ShopGotham.com - Built by an Event Planner and self described black-belt shopper. Sets up shopping tours of Manhattan.

As you can see, any hobby, profession or simply living day to day can produce ideas for your profitible online website.

TIPS:

• Keep a diary. A lot of your website content can come directly from your day to day experiences.
• Keep a digital camera with you as much as possible – you never know when the photos will come in handy.