As in all things there are many ways to go about meeting a women who is looking for a family. You can meet her on the forums and then start a more personnal relationship with her thru that. You can come to a BF's retreat and meet a single lady there (if any come to the retreat. You can also use a retreat as a good common ground meeting place for a first in person meeting.) You can submit an Introductions form to Nathan, the Director of BF. There is a link on the Home page for this. He will then make suggestions of single ladies, who have also sent in Introduction forms, to you. This is not a "dating service" per se, but a place that gives accountablility to the families and the single ladies. Nathan doesn't recommmend anyone that he doesn't know pretty well and he prays before making any introductions.
In addition, there are several ways to meet ladies out side of BF's. Other plural family websites, chat rooms, or even an ad on a dating service site, can all be used. I would recommend caution regarding all these methods though. Unfortunately, many people are deceiving.
If you are wanting to know how many have been united thru BF's that is a bit hard to know. You essentially have to have relationship with those on this site. I personally know of two ladies that have joined families this last year. As always, Biblical Families desires to be of support to those in plural marriage and those seeking it.
Prayer and patience would be my best recommendations. The Lord has a plan for each family, just sometimes we have to be patient in seeing it unfold.
With hope for the future,
Julie