War Stories, by andrastewhite.
Similar Habits, also by andrastewhite.
First Encounters, by selenak. (BTW, I have also linked the site to londo_mollari and vir_cotto_tm.)
Sleep Lightly, by whitestar2.
Also: *points to icon*
I'm halfway through To Dream in the City of Sorrows and so far it is an inspiring read. I love seeing the Rangers and the Vorlons through Sinclair's more skeptical eyes.