Which maybe I should have posted first in this series, is make sure your site is ready for visitors.
An easy way to do that is to run a report on your website or blog using the Website Grader which is a free service from HubSpot.
The report grades a site using "0 - 100" scale checking things like your indexed pages, meta data, links, image tags, Twitter grade, RSS feed, and so much more. You can read a sample report here (or just run your own and find out what, if any, changes you need to make).
After you see the results you can go about fixing any deficiencies that may have been identified.
You can also run reports on your competition.
And yes, there's and app for that, you can find it here.
You wouldn't have company unless your house is ready (well, us guys would), so don't invite folks over to your site until it's ready to be seen.