When you do business copywriting, you need to attract PR department and agency attention. One is within the company and one without, but they are often looking to build their corps of trusted freelancers. You want to have a solid core of blogs and published articles available when you contact them. Better yet, if your information is good then they may well contact you.

1. Publish a series of blogs on your industry specialty. This is one of the simplest ways to establish yourself in a business segment and one of the most ignored. Most writers write about writing on their blogs and websites. There is nothing wrong with this and you should have your share of postings about this very thing. However, when people hire you to write they want to know that you can a) write AND b) know their subject matter. By writing well and consistently about their subject matter you kill two birds with a single stone… which is a bloodthirsty analogy but you take my point. If you know healthcare, then write about healthcare and make sure that readers know you write professionally about the area. If you know pharma, write about pharma. If you know IT, write about IT. You get the picture.
2. Publish articles on your industry specialty. Trade journals are hungry for good articles. Most of them do not pay but placing articles in trade journals is a marketing expense and not an income. Believe me, these articles will pay for themselves many times over. Many of these trade publications have email lists into the hundreds of thousands, and a single well written article can get you tremendous exposure. Your only expenditure is your time. The publication carrying your article should allow you to include a tagline with your name, profession (“freelance writer”) and contact information.