The nn/lm scr blog directed my attention to the article Is LinkOut Necessary? When Link Resolvers Collide, By Denise O’Shea in the Middle Atlantic Perspective Newsletter.

"More and more libraries are signing up for LinkOut every day. However, a few LinkOut libraries within our region have also implemented Outside Tools such as SFX and other OpenURL-based services. Now, with an Outside Tool in place they may wonder if LinkOut is necessary and may actually consider deleting their LinkOut accounts. This article looks at the benefits of keeping LinkOut and compares and contrasts it with the Outside Tool."