On the Ripper himself, try this page -
http://www.greenfield.durham.sch.uk/H_HWK/...er%20Links.html - though some of the links no longer work.
What you need to do, as you read about the Ripper, to to think what elements of the case made it so interesting to the people of the time - things I would suggest are:
1. the goriness of the murders
2. the fact that the killer wasn't found
3. the fact that the Royal family were implicated
4. the fact that prostitutes (a forbidden fruit) were involved
5. the press interest
Can you think of any other factors as you study the story?