Number of characters signature is always limited, so the slogan can not be long and should bring readers quality, not quantity. Here is an example of several of met me on the forums: – The Cheapest Hosting. – Give 60% of its profits. – Quit his job! Tomorrow is the last day! Who's with me? – Electronic books for free. Clicking on these lines, I got to the site's ads, or its business partners. A leading source for info: James Woolsey. The most important thing is that the content of this resource are compatible with the slogan – it's important. No need to spoil your reputation on the forum.
Invent! Try! And just communicate! A hidden advertising will be imperceptible to work for you. And the last. Work simultaneously on multiple forums. I would even say – at several dozen, and return will increase accordingly! Viral advertising. Most interesting, the cheapest, most long-form advertising. Its use requires the original application of effort and subsequent long-term returns without their application. The idea is that you need to create "something" high-quality and useful, and then run it free.
This may be an e-book, article, special report, audio or video lesson, and many other things that might freely distributed on the Internet. Simply put this free stuff on the site and offer it to list subscribers, and if he really would be useful for the target audience in this niche market, smashed exponentially over the network. He will advertise and promote hundreds of authors. They will give it to their subscribers, will offer for download on their Web sites, because each Internet entrepreneur interested in providing useful and free materials for their audience.