Chroma Keying is not hard. However there are a lot of people who would gladly outsource this service. If you have the proper tools and an easy to use site, you could start making money today.

The Want
People want to create the nifty video effect where someone walks on to their web page or they want to key some footage over a particular background.

The Service
Offer chroma key as a service.

How it Works
Set up a simple website that has a submission form on the home page. People submit their footage and you chroma key it for them. You key the footage, convert and/or composite and send back.

Up Sell Opportunities
As added services, convert to Alpha Flash video, offer a number of interesting and/or wacky backgrounds, or video email. (Email link to completed video to friends and family).

Unique Offer pre-written scripts. Offer lighting tips. Show some amazing examples of what you can do. Offer wacky backgrounds to place people over.

Drive Traffic
Drive traffic by:

1. PPC
2. YouTube postings
3. Expert Postings
4. Article Submission (articles on chroma key, transparent flv, compositing, etc)

Tools You'll Need
For best results you will need either Ultra or AfterEffects (both by Adobe). AE has the added bonus of being able to output directly to transparent flv.

Scale Up
Initially, you can do the work. When things take off, hire some local help or submit jobs to Amazon's Mechanical Turk.

Details
You can start this business with a simple page that details the service. You can have clients submit footage via transferbigfiles or similar service. Once you see the demand and needs, you can have a form that allows people to submit and receive footage directly to/from your Amazon S3 account. Offer a subscription package where users can get a discount by buying in bulk.

Why This Might Work
Lots of people want to do chroma key and put video on their website, put over a background, etc. Video on the web is only getting bigger and in more demand.

Things to Watch
Poorly lit video can yield unacceptable results. A good chroma key depends on well lit video. Getting a lot of sub-par video could bog you down. One solution would be to grade video clips and give quote based on grade/quality. The more work you need to do to get good results, the higher the price. Another thing to watch is consumer expectations. Show lots of examples on the site of levels of results based on their video quality. Explain you can't fix poor lighting, poor audio, or poor acting!

Start your business by becoming the go-to resource for chroma keying and delivering great keys in a timely manner.