rachelwilliamson writes with the mindset of someone who admits, in her own words, to having an engineering brain, skeptical of anything that is not structured, logical, and analytical, which is exactly why a post about trying meditation to break through writer's block stands out: she is visibly uncomfortable with an unstructured technique and tries it anyway because a deadline forced her hand.
A post on income diversity argues plainly that even people with a stable job and full benefits should build a second income stream, pointing to how many previously secure workers lost exactly that stability in a downturn. A post on Facebook's rollout of Timeline links directly to Associated Press coverage of the change, treating the shift in personal privacy as worth taking seriously rather than shrugging off.
A recommendation for Copyblogger's free guide to writing viral headlines is enthusiastic and specific about what the guide actually contains, not just that it exists.
The meditation post shows her actually trying something outside her comfort zone. The income diversity post makes the more conventional argument.