To find specialized education-related periodicals only, start with these databases:
These databases each cover a wide variety of subjects. Mouse over the database names for a description.
You may want to start with EBSCO's Academic Search Complete, the world's largest multi-disciplinary article database with articles from 8,200+ publications; about 50% of articles are full-text.
These databases offer articles from several newspapers, magazines and journals. Mouse over them for a description.