A:
Astrophysics Data System (NASA) - Digital Library for Physics, Astrophysics, and Instrumentation. [Multiple agencies involved, Harvard University]

B:
BaBar Experiment - Particle physics experiment investigating the matter-antimatter asymmetry in nature. [Department of Energy (DOE), Stanford Linear Accelerator Center (SLAC)]

C:
Ciencia@NASA - Spanish translations of stories from Science@NASA. [National Aeronautics and Space Administration (NASA)]

D:
DOE R&D Accomplishments - Provides a searchable database about the outcomes of past DOE research and development which have had significant economic impact, have improved people's lives, or have been widely recognized as remarkable advances in science [Department of Energy (DOE), Office of Scientific and Technical Information (OSTI)]

DOE R&D Highlights - Provides non-technical summary information about selected research conducted or sponsored by DOE and its National Laboratory infrastructure [Department of Energy (DOE)]

DOE R&D Project Summaries - Access summaries of ongoing or recently completed science and technology projects funded by the Department of Energy [Department of Energy (DOE), Office of Scientific and Technical Information (OSTI)]

E:
E-PRINT Network: Research Communication for Scientists and Engineers - A searchable gateway to over 19,650 Web sites and databases worldwide, containing e-prints in basic and applied sciences, primarily in physics and subjects of interest to DOE [Department of Energy (DOE), Office of Scientific and Technical Information (OSTI)]

Energy Citations Database - Search bibliographic records for energy and energy-related scientific and technical information from the Department of Energy (DOE) and its predecessor agencies from 1948 forward [Department of Energy (DOE), Office of Scientific and Technical Information (OSTI)]

F:
Federal R&D Project Summaries - Locate current research projects from a number of federal agencies [Department of Energy (DOE)]

H:
High Energy Physics (HEP) Reviews - A guide to review literature in the field of HEP and astrophysics with useful articles selected and categorized by physicists at SLAC and Fermilab. [Department of Energy (DOE), Fermi National Accelerator Laboratory (FNAL), Stanford Linear Accelerator Center (SLAC)]

I:
Information Bridge - Search full-text of Department of Energy sponsored research and development reports [Department of Energy (DOE), Office of Scientific and Technical Information (OSTI)]

Inquiring Minds - Discusses particle physics in general and the work done at Fermilab in particular, with Fermilab Physicist chats and Virtual Ask-A-Scientist [Department of Energy (DOE), Fermi National Accelerator Laboratory (FNAL)]

P:
Particle Data Group (PDG) - Reviews particle physics and related areas of astrophysics, and compiles/analyzes data on particle properties [Department of Energy (DOE), Lawrence Berkeley National Laboratory (LBNL); National Science Foundation (NSF)]

Primer on Space Weather. - Information on solar flares, Coronal Mass Ejections (CMEs,) and magnetic storms and their effects on the earth. [Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA)]

S:
Science@NASA - Stories about NASA research activities and results. [National Aeronautics and Space Administration (NASA)]

Solar Physics. - Access to solar research. [National Aeronautics and Space Administration (NASA), Marshall Space Flight Center (MSFC)]

Supernova Acceleration Probe (SNAP) - Measures a Type 1 supernova to study the dark energy of the Universe. [Department of Energy (DOE), Lawrence Berkeley National Laboratory (LBNL)]

Supernova Cosmology Project - Discovers and studies distant Type IA supernova to increase our understanding of the universe. [Department of Energy (DOE), Lawrence Berkeley National Laboratory (LBNL)]

T:
TOPCited High-Energy Physics Articles - Annual lists of the most highly cited papers in High Energy Physics and Astrophysics literature including reviews by SLAC and Fermilab physicists [Department of Energy (DOE), Stanford Linear Accelerator Center (SLAC)]

The Institute of Geophysics and Planetary Physics (LANL) - Promotes and supports high quality, cutting-edge science in the areas of astrophysics, space physics, solid planetary geoscience, and complex dynamical earth systems [Department of Energy (DOE), Los Alamos National Laboratory (LANL)]

The Universe Adventure - Introduces the user to Cosmology: the study of the structure, history, and fate of the Universe [Department of Energy (DOE), Lawrence Berkeley National Laboratory (LBNL)]

Thomas Jefferson National Accelerator Facility (Jefferson Lab) - Conducts basic research of the atom's nucleus at the quark level [Department of Energy (DOE), Jefferson Lab (JLAB)]