Public relations: having your CEO and other key contributors guest post at semi-reputable news sites and blogs in your niche (ex. not at the spammy places that just got murdered by Matt Cutts). White hat link building isn't that distinguishable from public relations. You're just pitching people with a high pagerank to write some stuff about you and include a link.
Sign up for Google authorship to get your little mugshot next to your search results.
Syndication with rel=canonical pointing to the real page is great at garnering traffic and links that would otherwise be difficult to earn, especially if it's on a 'media' site. People are more willing to tweet/like/blog and link to a link from a publisher than they are to a non-publishing business, even if that corporation is just using the site as a sock puppet. As a solo founder, you should do that yourself, so long as you're not terrible and the stuff that you write is useful to your target customers.
RG's not the best example of white hat, given that they recently got hammered for a brazen paid link scheme.
The way I'd put it is that there is no such thing as a free link. You either pay the linker under the table as in most black hat arrangements, or you pay to put in the effort to create something worth linking to. Either way people are getting paid, even if it's in sweat.
