This site is supported in two ways: (1) promotion and sale of my books; and (2) a few advertising and affiliate program links.
I hope that if you find what I publish on this site as being useful, that you'll consider purchasing one of my books—you'll find lots of useful information in those books that goes well beyond what's on this site. Or I hope that you'll consider purchasing products from the advertisers and affiliate programs I link to.
For what it's worth, I do not link to any vendor I haven't used myself. Moreover, in the more than a decade of publishing this site, I've removed links to vendors whose service falls below what I consider acceptable levels. I should also note that all advertising is noted as such, and any links to affiliate programs are clearly labeled with "support this site." Unlike most other sites, I want to make clear when a link will engage you in a practice that in some way directly rewards me (technically, the US FTC requires that, but a lot of sites aren't following even the spirit of the regulations, let alone the exact requirements). Links without the words "advertisement" or "support this site" associated with them are clean links that have no hidden monetary exchanges behind them.
If you don't buy my books or buy from those advertising on the site but still want to make a contribution to help keep the site creating new and useful content, you can make a donation via the following link.