Some of my posts have been about ethical considerations when offering and providing LSR. Others have focused on ways to (ethically) market both the concept and your services. I am not a marketing professional but I know someone who is!
Stephen Fairley is a law firm marketing expert and the CEO of the Rainmaker Institute. His blog, The Rainmaker Blog, is filled with insightful and practical tips and cautions that every lawyer, not just those in the LSR space, can use.
A recent post by Stephen on LinkedIn, however, caught my attention more than most: Download This Latest Free Report: How Law Firms Use Blogging to Get More Leads. The report includes conclusions about the correlation between online activity and attracting new clients.
I think you will find a number of very helpful ideas you can adapt to your Limited Scope Representation practice.
Limited Scope Practice 
Stephens reputation in his field is un-impeachable.