Microphotography
    Microscope photography contest gallery: www.nikonsmallworld.com/

Macrophotography
    Excellent macrophotography of insects: www.huubdewaardmacros.com/

Microscopic Life:
    Tardigrades: Waterbears: be sure to check out http://tardigrade.us/
    Great site for a wide variety of microscopic organisms: http://www.microscopy-uk.org.uk/micropolitan/index.html

Rocketry:
    The sugar rocketry must read site: www.nakka-rocketry.net/
    James Yawn's recrystallized Rocketry site: www.jamesyawn.net/
    Fun Eclectic sugar rocketry blog site: zzakkslab.blogspot.com/
    OregonRocketry Club: www.oregonrocketry.com/
    High Power Rocket kits: www.binderdesign.com/

Chemistry:
    Good source for science supplies and information: www.unitednuclear.com/

Astronomy:
    What is happening in space now? SpaceWeather.com