This was already announced on the Vertebrate Paleontology Listserver; however, for those of you who do not subscribe:
The new issue of the open access journal "Evolution: Education and Outreach" is now available online here. This is a special issue on transitional fossils an contains articles from a number of specialists on a the origins of variety of animal groups as well as articles on evolution and systematics.
And of course as open access it is all freely available.
in The Biology Files