Surrogate motherhood continued: where did I come from?

As the market for surrogate wombs becomes more usual, and as the kids grow up, some new twists are added to the question "where did I come from?"

Here's a story that makes clear that surrogacy has been around for a while. It's one of the first articles I've seen that takes for granted that surrogacy is not a repugnant transaction, a point underlined by its placement on the front page of the NY Times:
No Stork Involved, but Mom and Dad Had Help .