Directory and archive of free scholarly journals. Heavily weighted towards computer science (58 links), including :

CodeBreakers-Journal publishes original research articles in all aspects of computational methods used in the working fields Software Engineering, Virus-Research, Software-Protection and Reverse Code Engineering and Cryptanalysis as well as all other areas of security analysis. It offers the possibility to publish grey articles/papers too.
Complexity International is a refereed journal for scientific papers dealing with any area of complex systems research.
Journal of Computer Science

:: Concurrent, parallel and distributed processing
:: Artificial intelligence
:: Image and voice processing
:: Quality software and metrics
:: Computer-aided education
:: Wireless communication
:: Real time processing
:: Evaluative computation
:: Data bases and information recovery and neural networks
And many more . . .

http://www.doaj.org/ljbs?cpid=99
Directory of Open Access Journals