What tactics do you use to encourage your following to either click through to the link you provide or have them re-tweet your important tweet?
When you're tweeting links, make sure that you are providing a brief description of what's in that link, and make sure that the content of that link is interesting.
ViperChill has fantastic advice on this topic... http://www.viperchill.com/blog-post-headlines/ (For blog post headlines, but post headlines make good tweets!)