The following three databases cover physics and related disciplines.

INSPEC
(via Engineering Village)

Abstracts from sources covering physics, computer science, information technology, etc.

Physical Review Online Archive

Complete full text of the American Physical Society's 8 journals.

DOE Information Bridge

Department of Energy (DOE) research and development reports in physics, chemistry, materials, biology, environmental sciences, energy technologies, engineering, computer and information science, renewable energy, and other topics.

This databases provide access to pre-print articles:

E-print Network

Pre-print articles in physics, materials, chemistry, mathematics, biology, environmental sciences and other areas, from a variety of pre-print servers.

These general databases cover all subjects, including physics:

ProQuest

Full-text articles, citations and abstracts covering all subjects.

Wilson OmniFile Fulltext

Full-text articles, citations and abstracts covering all subjects.

These two databases have full text newspaper articles:

LexisNexis Academic

Hundreds of regional, national, and international newspapers; business publications, and much more.

ProQuest Newspapers

Nine national newspapers including the Los Angeles Times and Wall Street Journal.