How to build a table of educational resources for physics teachers

To build this table of online materials for physics teachers I use many resources available on Internet. These resources are reported in the table below.
1. Phys. Simulations : Miss. State U. 2.Yahoo : Science education 3.New Scientist Hotspots 4.Scientific american bookmarks 5.Online Calculators
6.Knot A Braid 7.OMNI Cool Science 8.Interactive pages 9.Math Archives 10.Math Forun
11.AV collision applets 12.AV geometry applets 13.Britannica Internet Guide 14.AV physics simulation 15.lecturesonline
16.The Virtual Laboratory 17.Science gems 18.Pilot to Physics 19.Netscout 20.SciEd
21.The Geometry Junkyard 22.WWW als Lernhilfe 23.USA Today hot sites 24.Quadrics applet 25.Math Hots
26.Esperienze di laboratorio per la scuola 27.Prototipi 28.Physik mit java 29.How to create interaction Java-HTML 30.The mathman
31.Finite Mathematics and Calculus 32.Exploratorium Cool Sites 33.scienceweek 34. 35.Concorso Internet scuola
36.Relativity and Cosmology 37.Internet scuola 2 38.Ed.Objects Economy 39.Teaching and Learning on the Web 40.numeri 1-30
41.Learn Physics Today 42.Zona land 43.General Chemistry Online 44.Silicon,circuits ... 45.PhysLINK
46.MathGuide 47.eBLAST 48.JQuest Winner 49.Ed. Java programs 50.Internet detective
51.Phys. Simulations with Java 52.Google: quantum mechanics applet 53. 54. 55.
56. 57. 58. 59. 60.
61. 62. 63. 64. 65.
66. 67. 68. 69. 70.
71. 72. 73. 74. 75.
76. 77. 78. 79. 80.
81. 82. 83. 84. 85.
86. 87. 88. 89. 90.
91. 92. 93. 94. 95.
96. 97. 98. 99. 100.

I use this table to try to find new interesting documents. I try,for example, to answer questions like:

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