Welcome to the Q&A Forum

Hi Clancy, Best practices is to host your blog on the same domain, and same subdomain, as your main website. This offers so many long term benefits, you're almost throwing everything away if you consider anything else. Depending on the technology you are using to construct your website, there are different ways to prevent your users from accessing your site, but there is not a one-size-fits-all solution. If you're using WordPress, you can simply install a maintenance or "coming-soon" type plugin to keep visitors out, and then install your blog on a subdirectory.  example.com/blog If this isn't possible and you want to host your blog elsewhere, keeping on a subdomain as Jim suggested would be the next best alternative. Apart from linking to your site, there's not much else you can do to pass link juice between the two sites. You can, after your site launches, move your blog and migrate your traffic via 301 redirects.

I don’t think that adding quickly to a search term will make a much of a difference! I believe if you write your content wisely and build some good links, chances are that you will rank for both! In my opinion these are long tail keywords with Medium level of competition so if you will be good with content then chances are they you will win the half battle rest of the half battle is link building! But by hook or crook you have to choose any 1 keyword that will be without quickly for one good reason! -          Adding or including will not completely change the audience of the public and if you target the term without ‘quickly’, chances are that you will be able to make their mind and encourage them to think about selling quickly! The way I think over the complete idea!