Blogs:
(Going) The Extra Yad – Emily Garber is a Jewish genealogist whose thorough, nay, obsessive, research techniques have inspired me to dig deeper.
Lara’s Jewnealogy – Lara Diamond, another obsessive researcher (are you starting to see a pattern here?) is the preeminent expert on Jewish DNA, and her blog is a great resource for Eastern European research.
Odessa Secrets: The 1905 Pogrom – Started with a list of those killed in the 1905 Odessa pogrom, this blog expanded to cover the lives of those who were murdered, and explores the daily lives of Odessa Jews during this tumultuous period.
My Kerry Ancestors – Kay Caball is the go-to resource for anything genealogy-related in County Kerry, Ireland. Her blog gets deep in the weeds, which is a good thing.
Eastern European Mutt – Renée Carl is a Washington, DC-based genealogist who covers all sorts of topics (not just Eastern European ones) on her excellent blog.
Jewish genealogy resources:
Homestead Hebrews – An in-depth exploration of the once-flourishing Jewish community of Homestead, Pennsylvania.
Arolsen Archives – This site has a database of documents mostly relating to Holocaust victims and survivors, and they have even more in their on-site archives.
Irish genealogy resources:
Irishgenealogy.ie – One of the few things that makes Irish research easier than many other countries is the Irish government’s huge investment into getting their civil records online, for free. Their site covers birth, marriage, and death records from the mid-1800s to the 20th century, and they add new years every six months or so. They also have church records going back an extra 40 years for County Kerry and some of Cork.
Irish News Archives – The Irish Newspaper Archives are one of the best resources for Irish genealogy after church and civil records, and it’s often possible to find mention of your ancestors in the local newspapers for complaints and infractions great and small. Subscriptions are expensive, so check that your area is well-covered before you sign up (North Kerry is!)
FindMyPast – Find My Past has a collection of records not found on other genealogy sites, including Irish petty sessions and court records and dog license records that cover most of Ireland.