I'll write more later but...

In the meantime, I've got Google AdWords running in addition to LinkedIn so for $50/month I've got text ads to appear tied to (hopefully) decent keywords on Google searches. They'll randomly show it based on some algorithm (ok not random then I guess...) so that you have the right exposure on selected searches and hopefully quality traffic clicks through - you only are charged for clicks-when you hit your monthly level-then you're charged. So far in just the first few hours, one keyword had over 800 impressions/views (i.e. people saw it) and 1 person clicked. So at least you only pay for those people not viewers.

In addition, I have set up a Google Analytics account (free) tied to my blog here (owned by Google so quick/easy to set up) and can now monitor traffic in even more detail.