A review of papers on e-learning in the workplace 2000 - 2012. While this isn't quite an example of an annotated bibliography, it's got some useful material in that it covers a range of different papers, and demonstrates how they have extracted key information that all have in common. Use it as an example of the use of reviewing many papers, and the strategies they used to analyse the papers, which you might want to think about a simplified version of their approach yourself for your group work.
This is actually more or less a direct quote from the Wikipedia page aimed at teachers ... the information is useful, but it's also a good example of not making it clear when you're quoting/paraphrasing/using your own words.
If you want to use this page, you should remember to go back to the original source ... which is linked from here.
This is more "how to write a good tutorial" - but some of the points in the main image could be useful for your coursework - so; for example, ensuring the comments you write show sites you're pointing people to are credible.
A little dated now, but an example of a bibliography (extensive) with annotations - and a (long!) summary of all of the papers.
Way above what the coursework requires, but should show you how something like this is useful.
"This blog post is a quick summary of five of the academic papers that have most influenced me in my development as a teacher, and I would heartily recommend all five to other teachers. I do not always agree with every single thing written in these papers (although I generally do agree with the overall..."
[Summary from site, not my interpretation]. Useful papers, and an example of summaries of others' work, thus useful for the group work.