I wasn't into slash (or fanfic) when I watched the X-Files, but I've read some stories since. I stopped watching in spring 1999, and I remember at the time that I always thought Krycek was less important than many other recurring characters. But my fanfic explorations were quite the eye-opener. It was terrific to read about their canonical interactions, in sequence. And I'm sure I'll enjoy some of the stories you linked to. Thanks!