The how is the hard part, and is going to vary by industry/location/etc. I guess I would start by looking where your target company is active. Do they do any l

The how is the hard part, and is going to vary by industry/location/etc. I guess I would start by looking where your target company is active. Do they do any live conventions? Be there. Do they have heavy internet presence on any forums or otherwise (outside of their own site?)? Be there. If there own site has user forums, be a contributing member. Old fashioned networking works well too. Look up who works there on LinkedIn or whatever, start making friends. Be a contributing member of their community. Perhaps writing a few LinkedIn articles within their area of expertise? If you are aware of any technical/whatever problems they are facing, present a solution. Im just spitballing here.