Unfortunately, I'll have to decline this one.... it's a Triratna/FWBO site. Nothing against them, but the search engine is specific to Theravada.
Alas this means that even excellent sites like Buddhanet with a lot of Theravada content cannot be included in whole, because including them in whole would also automatically include their Mahayana content.
"Do not force others, including children, by any means whatsoever, to adopt your views, whether by authority, threat, money, propaganda, or even education." - Ven. Thich Nhat Hanh
"The uprooting of identity is seen by the noble ones as pleasurable; but this contradicts what the whole world sees." (Snp 3.12)
"To argue with a person who has renounced the use of reason is like administering medicine to the dead" - Thomas Paine