This topic seems actually quite controversial. Google answered the question by what could be taken as a denial. But their answer was kind of open to interpretations. And on the other hand, there are studies (one of them from Moz) that showed linking out has an impact. So, how can you be so assertive? Is it something that comes out from your own experiments?
Using HTML frames to surround linked content is a completely different matter. For an example of this, click on this link to the W3C about link myths. Some companies have successfully sued to have their pages removed from these frames because it can make some readers believe that the linked page is actually a part of the originating site, and possibly owned or authored by that same site. But, in most cases, if the owner of a linked site objects to the frame and it's removed, there isn't any legal recourse.
This is a great list of SEO tips. One tip you can add to your broken links section is that there is a free tool called Xenu Link Sleuth. It will automatically crawl your website (or a competitor’s site) and find all the broken backlinks (and lots of other things). It’s very helpful if you have a large site or need to find broken links you aren’t aware of. (like images and .pdf files)
The first step that I take is to do a quick Google search to find pages on my domain where I've mentioned the keyword in question so that I can add an internal link. To do this, I'll use the following search query, replacing DOMAIN with your domain name (e.g. matthewbarby.com) and KEYWORD with the keyword you're targeting (e.g. "social media strategy"):

Organic results includes a wider range of websites—not just local businesses. While location may still be a factor in the organic results, it is not generally the dominant factor. The main factor is the authority of the website (or the credibility of the site), external links back to the site, the length of time the site has been live, and other considerations. This is why you will often see sites such as Yelp, Angie’s List, and Facebook show up high in search results.
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