If you've wondered what kind of research is going on these days, one place to see a lot of paper abstracts conveniently gathered together is the AGB Newsletter [1].
The AGB Newsletter is edited by Jacco van Loon (Keele University, UK) and Albert Zijlstra (University of Manchester, UK) and features papers related to Asymptotic Giant Branch stars; their structure, behaviour, evolution or mass loss and their impact on the evolution of galaxies.
Links:
[1] http://www.astro.keele.ac.uk/AGBnews/view.html
[2] http://www.aavso.org/forums/variable-stars/long-period-variables-lpvs
[3] http://www.aavso.org/category/tags/agb-stars
[4] http://www.aavso.org/category/tags/long-period-variable
[5] http://www.aavso.org/category/tags/lpv