What are some good reference materials for my dark matter presentation?

[Aschere]

I'm putting together a slideshow about dark matter for my colleagues and was wondering what would be good reference material to fall back on other than stuff like Douglas Clowe et al.

Any "start here" links along those lines?

 

[Chronos]

Here are some of my personal favorites from the past few years [aside from the bullet cluster fanfare]:

New evidence for a Dark Matter Galaxy
http://www.interactions.org/cms/?pid=1023641

Abell 2029: Hot News for Cold Dark Matter
http://chandra.harvard.edu/photo/2003/abell2029/

Abell 1689 Warps Space
http://apod.nasa.gov/apod/ap030109.html

CFHT Gives First Glimpse of Dark Matter Distribution
http://www.cfht.hawaii.edu/News/Lensing/

Dark matter comes out of the cold
http://news.bbc.co.uk/2/hi/science/nature/4679220.stm