I know nothing of the html stuff. I do know these three web sites provide excellent information for understanding Northern Ireland.

www3.pitt.edu/~novosel/ireland.htm

wwwvms.utexas.edu/~jdana/irehist.html#top

cbc.ca/news/indepth/nireland/index.html

The CBC site will get you started. The other two sites from academics will keep you going for awhile. Many courageous people, mostly in Northern Ireland, are trying to make the current peace process work: they need our support!