I have put together an activity for students to help improve their skills in summarizing information using three simple tools in Microsoft Word. Highlighting Text, Creating a Table and creating a flowchart. Based around a recount of the sinking of the Titanic.
Secondly students are asked to write an information report using the information they have collected in their own words. Their are a ton of links and guides on how to do all of these tasks if you are not 100 percent confident with Microsoft Word in the Slidesharebelow. Alternately you can download the PowerPointhere.
I would advise going through this with your students as a whole group and then letting them work individually using the PowerPoint template as a guide.