It may sound odd that space on a low-tech newsletter could be desirable in an age of mass-market blogs, when young people increasingly rely on instant messaging, texts, and such sites as Twitter and Facebook instead of e-mail. But remember that signing up for and opening an e-mail newsletter is a much bigger commitment than passively clicking on a link that takes you to a blog post, notes Sarah Lacy in an article for BusinessWeek.com. One publisher she mentions commands $40 per 1,000 views of some newsletter ads. Newsletters likely won't keep large media enterprises afloat, but a carefully produced (for example, local content of value - not selling), well-targeted (opt-in - not spam) digest could mean near-term revenue, she says. Publishers can see how many people open an e-mail, how long they read it, and how many friends they forward it to. Advertisers eat up that kind of engagement.