I absolutely agree with Mike. Specializing in one field will definitely help to set you apart from other CWs.
Just a couple of quick things, tho'...
First, don't trap yourself into the "long copy vs. short copy" argument. Neither is really better than the other. The length of your copy will completely depend on what your purpose is, who your market is, and how long it takes you to convey what needs to be said.
For instance, I've seen website copy with phenomenal conversion rates that, when pasted into a WP program, was over 12 pages long. And I've seen DM packages that had only a single sales page and a response device - and made millions. So really, it will completely depend on what you
have to say to get your message across at the time.
Second, your idea for using postcards as a way to market yourself to the clients you want is right on! Postcards are a great way to get customers to your website. And the idea of offering them something for free if they visit (I like the idea of a free report geared specifically to
that market) is the perfect way to get them there.
I think for sure you're on the right track!
Just my two cents
