What is some Market Research on products similiar to WebInterlock.com - 
including sales figures, competitors and future developments?

http://www.flamingtext.com  has something similar to what your site offers, 
however not as well as yours.

From a market research perspective, you are going to have some difficulty 
finding very granular data for the type of application you offer. You will be 
able to find information about competitors via standard searches like easy web 
site development, etc.

Here are two more research methods I reccomend:

1. Go to the big player sites in your space. Find the ones that are making use 
of analysts and then look in the investor and press release areas for 
statistics they quote on market potential etc. Then go to the analyst's site 
and see if they are selling or offering the study that the competitor quoted. 

2. To find out their future developments, one method I have used very 
effectively over the years may be of value to you.  Short of corporate 
espionage, these are some of the ways I have been able to get this kind of 
information in the past:

A. Press Release will often contain some future feature lists.
B. Look at their employment ads. While some companies will be very secretive 
about their future product features, you would be surprised how much 
information they are putting in their ads for developers, product marketing 
managers, etc. I have never been able to understand this blatant gap in 
security. 

There are more methods for getting this info and will try to get some time 
today to post them.

Oops sorry.  I forgot to add that you need to take anything you read from an 
analyst with a grain of salt. Analysts rarely write a report unless they have 
clients in the industry they can report about. They collect tens of thousands 
of dollars of fees from these clients on an annual basis. What they provide for 
those fees are:

1. Research services of the type you posted.
2. Research report access in their analyst library.
3. Well placed quotes for reporters in tech publications, about how great their 
clients product or strategy is.
4. Oh yeah and business advice on strategy and technology. I have worked with 
all the major players in the industry though and have rarely found their 
research to be much more than specualtive filler for your business plan. 

Brad