CiteULike [Link].
Allows personal profiles and groups.
Shows people and institutions interesting in a specific topic or search.
ISI Web of Knowledge [Link].
Provides the impact factor of JCR.
It is a meta search engine.
Export bibliography to the main reference managers (Endnote, RefWorks).
List of cited articles.
List of saved searches.
IngentaConnect [Link].
It is a meta search engine.
Allows email syndication and sharing.
Google Scholar [Link].
Allows personal profiles.
Allows to create email alerts based on searches.
Microsoft Academic [Link]
Allows personal profiles.
RSS option for searches.
Useful information about journals, conferences, and keywords related to on search.
CiteULike [Link].
Allows personal profiles and groups.
RSS option for searches.
UPM (Universidad Politécnica de Madrid):
Repository of Universidad Politécnica de Madrid (Archivo digital de la UPM) [Link].
Allows personal profiles. My personal profile: [Link].
It also disseminates your researching results and checks the publication rights.
Access to the ISI Web of Knowledge [Link].
WIFI access in ETSIT, UPM, and other European universities (Eduroam) [Link].
ETSI Telecomunicación library [Link]
List of electronic resources [Link].
Safari online books (ProQuest) [Link]
Online books of informatics, engineering, etc.
Some interesting books:
Matlab: A Practical Introduction to Programming and Problem Solving, 2nd Edition [Link].
Practical Image and Video Processing Using MATLAB [Link].
Digital Signal Processing Using MATLAB for Students and Researchers [Link].
MATLAB® and Its Applications in Engineering: Based on MATLAB 7.5 (R2007b) [Link].
Pattern Recognition, 4th Edition [Link].
Probability and Random Processes, 2nd Edition [Link].