While I have a lot to say on the subject of immigration and Japan Living I also like to be involved with people who have more experience. On YouTube there is a community of folks (expats) who blog and share their lives and or thoughts on Japan living.
"Two and a Half Oyajis" is a kind of weekly discussion between some of the leaders/popular people in the community. If you have some free time and don't mind the usual banter in tight communities then I recommend having a look at the link below.
Generally they talk about personal experiences concerning living in Japan.