Marketing

We have a website which has been online for 6 years or so. Our Alexa rating is 1.4 million, we get about 450 visitors per day and our Google PageRank is 3. Everything above is in need of improvement. I dont know if there is a single program which can help us or a long term commitment, but we are interested in hearing what any of you can do for us. Our search engine traffic only accounts for about 7% of our overall traffic. Its not a site we sell items on. Its our corporate site for a large business brokerage meant to give content on business buy and selling and for lead generation. Your thoughts and a good plan on taking our marketing to the next level will be heard with very open ears.