I was looking in Generics.Collections and noticed there was no linked list. Sure they are simple to make, but I thought it was odd there was not one (or I just missed it).
In the old days, almost any piece of serious software contained linked lists or trees.
I haven't used linked lists alot, but trees are another story.
With the introduction of dynamic arrays, there is not that much need for linked lists. But I can imagine that you want to use it if your datastructure is changed often (add + delete).
You can easily create a generic linked list yourself, using a container class and records for the elements.