http://www.curriculumonline.ie/uploadedfiles/PDF/lc_biology_sy.pdf The Leaving Cert Syllabus, Lower and Higher level
http://www.skoool.ie/skoool/examcentre_sc.asp?id=1945 a skoool.ie page on the new biology syllabus. Skoool.ie is skoool.ie is a collaboration between AIB Bank, The Irish Times, Intel Ireland and other sponsors.
http://leavingbio.net/ A very nice set of pages with good diagrams. More a work of love than fully professional
http://ocw.mit.edu/high-school/introductory-mit-courses/biology/ The Biology section from the MIT highlights for High schools section of the open course ware resources.

Online interactive Resources:
http://bodybrowser.googlelabs.com/index.html Body browser Google Maps for the human Body!
http://www.bbc.co.uk/science/humanbody/ BBC with another great resource,
http://www.thatquiz.org/tq-k-z5/science/anatomy/ And then test you knowledge here.

Exam papers
http://theleavingcert.com/leaving-cert-biology-past-exam-papers/ A list of past papers on "theleavingcert.com" which is a student blogging site.

www.yTeach.ie (Comercial), the following info is provided by the supplier of the link: Digital Content for upper primary to leaving cert higher level. Excellent animations and videos covering all areas of the curriculum clarifying some difficult concepts. Variety of subscription options.


At the TY level if your looking for a 15 minute filler this IWB resource on Cheese from New Zealand reads well
http://www.biotechlearn.org.nz/focus_stories/cheesemaking/from_milk_to_cheese