I stumbled across a site www.sawf.org when I searched for information on raag Jog and recently for raag Shree. There is a music section in this site and there is quite some information available on certain ragas on this site. A raag is not just about arohanam and avarohanam. The various prayogas of the raag are explained along with some sound samples too. I found this very informative and I believe you will too.
Here is the music section of the site:
Speaking about ragas, I will write a series of posts here on certain ragas and how some of the music directors have used the raga in film songs. I will be focusing mostly on tamil film music, since that is what I know. I will also keep a focus on present day music directors and hence I can write about only a handful of ragas. Please keep in mind that since it is film music, don't expect too much classical adherence to the raga.