There was one thread started about sending research manuscripts for in press publications vs. abstracts, this is sort of related. What if you don't have any publications, but may have a poster. Is a poster handout, maybe along with the original poster proposal (typically 1-2 pages) an appropriate writing sample, or should it be an actual paper? My problem is that I've been out of school for a couple of years, so I feel that my writing has improved beyond my honors thesis, and my recent poster may better reflect my abilities.