What is your conversation like with the people you communicate with? I don’t care what they really are. They could be people on Twitter, bloggers, customers/clients, or family members and friends. What is your conversation like with them?
There has to be evident value to the things we do, or we quickly get filtered. What would happen if you had a neighbor who only ever talked about work? Probably not too many dinner parties with that guy, eh?
The same holds true in email, blogging, or Twitter. If you constantly interrupt other peoples’ conversations with no other purpose than to tout your own product or service, then you’re going to find yourself filtered or blocked. Everyone knows about you and they want content, not marketing.