I've just started on this and was wondering if anyone else wanted to compare notes. So far I've just trawled through free online resources (1901/1911 censuses, Griffith's Valuation, Tithe applotments) and talked to my grandparents, although I do have an exciting day's gravestone viewing booked in next time I'm home in Ireland (I sure know how to have fun
). I've just forked out for an ancestry.com subscription but am vaguely terrified by the amount of records on offer.
I've also got a PhD in early 20th Irish history, so might be able to answer any questions about the wider Irish context.