I visit Delicious once a day and have watched the site undergo some impressive changes over the past year. Today, I noticed in the "TECH & SCIENCE" category some stacks relating to "programming tools". So I checked them out. Along the right side of the page were listed some "RELATED STACKS". So I checked those out too. I have some sites bookmarked, and relevant to the topic of programming, but didn't see them listed as a related collection. I would like to increase the chances that my collection of links get listed by Delicious as a related collection whenever somebody else's "programming" collection gets featured. However, it seems to me that a collection has to be included in a Stack before it is even noticed by Delicious. Even though my bookmarks are tagged "programming" and they are grouped together in a "Programming" Tag Bundle, Delicious doesn't seem to pay attention to them. Am I mistaken? Do I have to group my sites into Stacks now, to catch the attention of Delicious? Some of those other collections seemed pretty lame. Only 3 or 4 links in their stacks--but they got listed as related sites. Mine has more than that--and good-quality sites.