The Care and Feeding of Your New Platonic Friend (via Metafilter)
Oh man, this is awesome! I have wrestled with this problem and have come up with a solution that seems to work OK:
Introduce the platonic friend to as many of your single friends as quickly as possible, then fade into the background, never doing anything with them unless it's in a group.
Usually, if you're carfeul, you'll have a enough time to get over it without going through "the talk" which is the fuckin' worst!