::Miscellaneous Links Landolt standards Relativity on the World Wide Web An Introduction to Extragalactic Astronomy Blazars in the Web Philippe Prugniel's bookmarks
::Surface Photometry HST Investigations Into the Central Structure of Galaxies A Hubble Space Telescope Survey of the Mid-Ultraviolet Morphology of Nearby Galaxies A subarcsecond resolution near-infrared study of Seyfert and `normal` galaxies: I. Imaging data
::Gravitational Lensing in Astronomy Gravitational Lensing in Astronomy: a Review by Joachim Wambsganss A Brief Review on Gravitational Lensing and Collection of Links by Joanne D. Cohn R. Schmidt's Theses (MS and PhD) and Papers Geraint Lewis's Astronomy Page Including His PhD Thesis Lensing Links Collected at Potsdam