Electronic Journals Library (EZB)
One of the most comprehensive, freely accessible directories of electronic scientific journals in full text on the Internet. A co-operative service of currently 600 libraries, consortia and research institutions with the aim of providing their users with easy and convenient access to electronically published academic journals. The EZB is hosted at Regensburg University Library.
All electronic academic journals that allow access to the full text (currently approx. 76,000) are listed. Accessibility is indicated by traffic light symbols. Journals with general access are green. The EZB lists considerably more "free" journals than the Directory of Open Access Journals in Lund, which is also due to the fact that the inclusion criteria for the DOAJ are stricter than the criteria of the EZB, according to which a journal is to be classified as "free" (source: Wikipedia).
BioOne
Access to approx. 180 journal titles from 135 publishers. Automatic access via IP range
Directory of Open Access Journals (DOAJ)
The DOAJ is a directory of electronic journals operated by the University Library in Lund, Sweden, which are freely accessible on the Internet in accordance with the principles of open access. It includes quality-controlled scientific journals that are available online free of charge immediately after publication (and not only after an embargo period). In December 2004, the DOAJ counted over 1400 entries, in January 2006 it reached the number of 2000 free journals. There are currently 103 journals listed for the subject area of biology (Wikipedia).
Springer Online Journal Archive 1860 -2001
The archive contains the full texts of over 1,000 journals published by Springer Verlag (including Kluwer), generally from issue 1 to 2001 (journals published since 1997 are not included).
Biodiversity Heritage Library
Project of now sixteen US and British libraries for the copyright-free digitisation of literature (before 1920 or 1899) on the subject of biodiversity - including journals.
To date (September 2014), 86,700 titles, approx. 150,000 volumes and approx. 44,655,000 pages have been digitised (source: Wikipedia).
Biodiversity Heritage Library for Europe
European offshoot of the BHL. The project brings together digitised literature collections from all over Europe in a common and freely accessible internet portal.
AnimalBase
Project of the Georg-August-Universität Göttingen. The aim is to digitise early zoological primary literature and provide copyright-free open access to these works. In addition, manually checked and verified lists of zoological genus and species names are made available to the public as a free resource. Public use of AnimalBase is not restricted or subject to conditions. AnimalBase covers all zoological disciplines. In the field of biodiversity informatics, AnimalBase is unique in that it links names of zoological genera and species to their first descriptions, with a focus on literature and names from before 1800.
From 2003 to 2005, around 400 zoological publications from 1550 to 1770 were digitised. Around 10,000 zoological names and their links to the original works were entered into the database. In a second project period (2008-2011), further works were digitised and several tens of thousands of additional zoological names were extracted from the original sources and linked to the digitised first descriptions (Wikipedia).