delfi.lt provides some information regarding an on-going educational project.
http://ebiblioteka.mkp.emokykla.lt/ provides most of the Lithuanian classics and some from the outside of Lithuania in pdf, epub and mp3 formats.
http://gamta7-8.mkp.emokykla.lt/ provides natural science education; and
http://lietuviu5-6.mkp.emokykla.lt/ provides Lithuanian language classes for 5th and 6th grade.
There is one really impressive site for the World-wide learners - Khan Academy
P.S. I only could wish I had these opportunities when I was a kid ;)