Along with reading this forum...

You can go here...and listen, and then practice with like minded individuals.

http://www.ccwatershed.org/liturgy/years/B/

There are also any number of books offered here...

http://www.lulu.com/spotlight/cmaa

and downloads here...

http://musicasacra.com/literature/

that offer information on how to read and sing chant.

Last but not least, there is an amazing opportunity to begin learning chant or learn more if you've already begun, this summer in Utah, the information is here...

http://musicasacra.com/colloquium/

I hope this information is helpful.