I partner with people I trust.
If someone contacts me out of the blue - on WF, for example - I am a bit wary.
I might appreciate their intent but they do not know me. Strangers have not earned my trust, and to be honest, I have not gained their trust either.
I simply have no clue who they are and what they are about yet.
But if someone has generously helped me out, promoting me, linking to my blog, fixing up my blog for free, etc, etc....I trust them. This is a potential business partner, because I know what they are about.
They have proven to be responsible, caring, generous and driven. I surround myself with these folks.
Each venture I work with a partner needs to be built on a rock-solid foundation.
The foundation is built on trust.
I have established friendships with my partners over months, or sometimes years.
This is not the right or wrong way of doing things. Just what vibes with me.