Hey, Rich!
You didn't mention the type of product you will be marketing, so the following is in general terms from my own experience (of course, your mileage may vary).
I do fine art photography and T-shirt design, with a presence on a business facebook page, a personal website, Fine Art America, Talenthouse, Pinterest, Sunny Bump, Stumbleupon, Google+ and Redbubble. Until recently, I was also on Dudepins (tech difficulties finally made me drop them).
For branding across all these, I use the same avatar to tie them all together. Again, since I don't know what your product is, I will assume it is more a physical gadget or design as opposed to artwork. In that case, I would suggest at least creating a board on Pinterest that you can post pics of your product from your website. Dudepins is for this purpose, also. In both cases, the pics will link to your parent site. By accumulating followers (and of followers of followers, etc.), you can expand your presence very effectively -- especially if you have something unique or off the beaten path.
Talenthouse is the opposite of Kickstarter and other crowd-funding sites in that instead of soliciting small donations from a large number of people, famous and wannabe famous folk solicit projects/designs/fashion entries, etc. from the non-famous. For example, this year Austin City Limits wanted a new logo for their promotional stuff (banners, t-shirts, hats). U2 and other famous bands have sought creative stuff on Talenthouse, as well, including song remixes (you upload raw tracks and submit your own mix), dance choreography, etc. Not every project is artistically oriented, though. Aside from monetary rewards on two separate levels (people's choice and the client's choice), you can get great exposure -- frequently on an international level. In this and in most other organizations I've mentioned, the networking possibilities are also endless.
You can also create a YouTube video of your product.
As you are undoubtedly aware, there are countless pieces of advice floating around. If there is any one thing that I'm convinced has helped my sales it would be having a presence on Pinterest (yeah, I know it's supposedly mostly for women, but that's not a bad thing. Both sexes still use this as a resource.).
And I forgot to mention, joining any or all of these sites is totally free! There are paid services that claim to optimize your product coming up on the top few entries during a Google search (SEO - Search Engine Optimization) or to drive more traffic to your site in other ways, but I'm too poor to bother with those. They may be worthwhile in your case, though. You can also check out what your successful competitors do. I've found many folks in the same field who are willing to share strategies and trade secrets because of confidence in their own products. After all, even if you deconstructed an Alembic (good luck on that one!) and tried to build a facsimile, would it really be the same? Some things aren't quantifiable, no matter what.
Anyway, good luck to you and your wife with your product!!!
-Sam