A website I’m coming to appreciate more and more is archive.org. It’s very useful for finding primary sources such as articles or collections of speeches from the 19th and early 20th century (all of which are out of copyright by now).
Just recently I found Home Rule: Speeches of John Redmond M.P., which contains speeches from 1886 to 1909, and also The Select Speeches of Daniel O’Connell, M. P.
Definitely a lot more convenient than hunting through dusty volumes in the archives, though part of me does miss the romance of doing that…