Ask HN: Where do you advertise for Sales staff?

I run a small consultancy in Seattle, WA. Hiring experts in our niche is usually fine - I know where they hang out, what they read, who they follow on Twitter, etc. However, I'm about to hire another Sales Exec, and this is all a bit of a mystery to me. If you have any suggestions for where job adverts should be posted - or other considerations to catch the attention of the 'right people' - that'd be hugely appreciated.