Some advice that can be useful for software sales too:
It’s much easier to just borrow other peoples’ audiences when you need them.
Try emailing prominent bloggers discount codes for your software — you then can borrow their audience if they are willing to publish your discount codes just like the linked articles says (for getting “beta” users).
After playing around a bit with various fonts and color schemes due to increasing eye-strain, today, I finally settled on using “Lucida Console” with “ClearType” font smoothing for C/C++ programming (under Windows with Emacs and Vim) and realized something — when the code looks beautiful (as it does with this font combination), I feel like writing beautiful code :-).
I now use Lucida Console Regular, font size 11 with ClearType font smoothing under Windows.
(UPDATE: Mensch is now my new favorite. On my Emacs on Windows XP, Mensch looks mostly like Lucida Console, but has minor enhancements (like 0 with a dot in it to distinguish it from O) that I like)
Use this simple method to choose fonts, font styles and font colors under Emacs for Windows: Click the first mouse button with the Shift key pressed. Doing so brings up the Windows font chooser dialog. The dialog only brings up fixed-width fonts — perfect for programming. Choose and set the font settings you want. The change only affects the current session.
Here is how to look for all occurrences of a domain name on the social bookmarking site delicious — search for “domain:grok2.com” (replace the domain name with the domain you are looking for) using the search entry field. An interesting feature of this is that you can see some trend statistics and the various tags used when bookmarking pages on the domain.