Identify lesson plans that need more links.

[amandabee]

At the bottom of each lesson plan we've included two things:

• A round up of links in the news that do a great job of explaining why it matters to take the lesson seriously, with an eye towards experiences that directly impacted newsrooms and public figures.
• A round up of other lesson plans that also cover the same material well, but with a different approach or for a different audience.

Some of those links lists are very complete, others are a bit thin. We need to identify the lesson plans that want more links, both to news stories and to other guides and lessons, and add good links it.

We also need to look out for great guides, lessons and news stories that belong on a particular lesson plan even if that lesson plan already has a rich set of links at the bottom.