I love this ecosystem interactive notebook for my students. It contains food webs, food chains, energy pyramids, and more. Part of the Earth Science interactive notebook series. Great interactive journal projects for grade - middle school.
Phylogenetic Tree of Life -The OpenLearn site used to offer this phylogenetic chart in the shape of a tree as a free poster, but no more. They do have an online version of this same illustration, expandable and with links and an explanatory guide.