If current trends continue, it seems everybody except Elvis and you Aunt Sally's Cat will have blog next year. Do you have one? Do you use it get links back to your website?
Backend Steps You're going to need to integrate a blog into your existing website. Think "Widget News", "Widget Trends", or "Widget Happenings". Next your going to need to integrate Trackback into your blog. If you use one of the major blog tools (aside from Google) chances are it will already be done for you. If you use Google's Blogger you'll need a third party solution. (search for "how to install trackback into blogger").
Finding the News Now go to your favorite online news service. Set up a news alert for your keyphrases. You're looking for big industry news, things that will be "front of mind" for lots of people. Sometimes the more controversial the better. You'll know these stories when you see them. Next start looking for the really big/popular blogs in your industry. It's not important you get these all right off the bat you'll find them over time. Subscribe to them via your favorite RSS reader.
Letting the rubber hit the road So you get an alert about a news topic you think is good or a get alerted via you're RSS reader, now what do you do now? Nothing! Ok really you should just read the article. Then forget about it for few days. You may want to send yourself a reminder about the article in 3-4 days. Now go and search for "your news item" and "trackback". Go and read the articles. If you like it make a note of the URL. Now go write your own blog. Make references from the other articles you like. Post links to these other articles. Now go to your trackback control center and send a trackback ping to the other articles. As long as you don't look to spammy chances are they won't delete the trackback link and you'll have a reciprocal link to a deep page on your website
Speculation With all this talk about Hilltop, Authority and Expert sites chances are many of these big popular blogs fit into one of these classification.
Opinion A quality backlink is a quality backlink ... period.