Journals on the web

General

Nature (w-toc) 
Science (w-toc) 
Scientific American (m-toc) 
Biological Cybernetics (springer-p-toc-a-pdf) 

Computer Vision

IEEE Transactions on Pattern Analysis and Machine Intelligence (ieee-m-toc-a) 
International Journal of Computer Vision (kluwer-m-toc) 
Computer Vision and Image Understanding (apnet-p-toc-a) 
Machine Vision and Applications (springer-p-toc-pdf) 
IEEE TRANSACTIONS ON IMAGE PROCESSING 
Graphical Models and Image Processing 
Applied Optics 
Journal of Mathematical Imaging and Vision 
Videre: A Journal of Computer Vision Research 
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 

Machine Learning

Machine Learning 
Neural Computation 
Neural Networks 
IEEE TRANSACTIONS ON NEURAL NETWORKS 
Neurocomputing 
Neural Computing & Applications 
Data Mining and Knowledge Discovery journal 

Artificial Intelligence

Artificial Intelligence 
Journal of Artificial Intelligence Research 
Pattern Recognition Letters 
IEEE TRANSACTIONS ON FUZZY SYSTEMS 
IEEE TRANSACTIONS ON EVOLUTIONARY COMPUTATION 
Evolutionary Computation 
Artificial Life 
International Journal of Pattern Recognition and Artificial Intelligence 

Robotics

IEEE TRANSACTIONS ON ROBOTICS AND AUTOMATION 
IEEE TRANSACTIONS ON SYSTEMS, MAN, AND CYBERNETICS

Robotics and Autonomous Systems 
Advanced Robotics 
Autonomous Robots 
Artificial Life and Robotics 

Vision Research

Vision Research 
Spatial Vision 
Visual Cognition 
Journal of Visual Communication and Image Representation 

Cognitive Science

Trends in Cognitive Sciences 
Journal of Cognitive Neuroscience 
Cognitive Psychology 
Kognitionswissenschaft 
Animal Cognition 
Perception on-line supplement 
Perception & Psychophysics 
Mind 
Cognition & Emotion 
Mathematical Cognition 
European Journal of Cognitive Psychology 

Experimental Psychology

Journal of Experimental Psychology: General 
Journal of Experimental Psychology: Learning, Memory, and Cognition 
Journal of Experimental Psychology: Human Perception and Performance 
Journal of Experimental Psychology: Animal Behavior Processes 
Journal of Experimental Psychology: Applied 

Behavior

Adaptive Behavior 
Animal Behaviour 
Behavioral Neuroscience 
Behavioral and Brain Sciences 
Behavioral Ecology 

Neuroscience

Trends in Neurosciences 
The Journal of Neuroscience Online 
The Journal of Neurophysiology Online 
The Journal of Comparative Neurology 
European Journal of Neuroscience 
Brain 
Cerebral Cortex 

Biology

The Proceedings of the National Academy of Sciences Online 
Proc. Royal Society of London Series B 

Computer Science/Mathematics

IEEE TRANSACTIONS ON COMMUNICATIONS 
ACM Computing Surveys 
Computing 
International Journal of Game Theory 
Journal of Semantics 
Communication Theory 

Control Theory

IEEE TRANSACTIONS ON AUTOMATIC CONTROL 
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY 

Pattern Recognition/Signals

IEEE TRANSACTIONS ON SIGNAL PROCESSING 
IEEE TRANSACTIONS ON INFORMATION THEORY 

Others

New Scientist