Illumina Technote: How Illumina Sequencing works

Here's a a PDF that describes how Illumina seqeuncing works with nice graphics:
http://www.illumina.com/documents/products/datasheets/datasheet_genomic_sequence.pdf

A copy is saved here:

http://sites.google.com/site/webhostingoffiles/Illumina_datasheet_genomic_sequence.pdf

Another great article detailing sequencing technology is saved here:

http://sites.google.com/site/webhostingoffiles/Sequencingtechnologies%E2%80%94NextGen_nrg2626.pdf