Photopic Sky Survey True-color all-sky survey, with constellation and star name overlay option. News articles state it is the largest of its type. Requires Flash.
Be an Astronomer Right From Your Window Suggested by Emily via Jamie VanAllen of Northern Mentors. On a commercial site, but has a number of links to sites with information for the young or beginning astronomer.
Sky Screensaver by John Walker Includes current location of planets, moon and sun, star names. Several other interesting items on his site.
US Naval Observatory (USNO) Data Services Sunrise, sunset, eclipses, and more!
Astronomy Software Assorted astronomy freeware, links to homepage and to download.
Air Quality today What the air quality today, in various parts of the US.
NIST US TIME - Eastern Time Zone Official US time, use arrow to change time zone..
Space Weather "News and information of the Earth-Sun environment." Solar winds, X-Ray solar flares, number of sun spots, and more Including forecast.
Wolfram Alpha computation engine From the site: "Enter your question or calculation and Wolfram|Alpha uses its built-in algorithms and a growing collection of data to compute the answer."
Geology.com Maps of various types: satellite, altitude, rivers, major roads, etc.
Tax Cloud Internet Sales Tax Guide Sales tax rate for a location (state plus local), and by category (food, clothes, etc.). Click Find a Rate, and use map.
Tax Foundation - Data Page Great deal of information on state, local, and federal taxes. Search "cell phones" for tax on your mobile.
Relative Value of $100 How far does $100 go in each state (use map). From Tax Foundation.
Retirement Living Information Center.com - Taxes by State
Use map to see individual state tax information.
Top Retirement.com - State Guide Tax information for each state: income, sales, property, inheritance/estate.
County health rankings.org More than you might want to know about the area you areconsidering. Example: population to doctors dentist.
Property Tax by county CNN Money property for US counties. By average dollar and average price of home. Use zoom to see county outline. Divide average tax by the percentage equal average houe cost.
Zumper.com Hotpads.com Available rentals and price.
National Council on Aging - Benefits Check-up Benefits check-up for 55 and over.
Moving.com (stats) Sterling's Best Places (Cost of Living & stats) Compare your town with another town.
Charity Navigator.org AARP recommended site for checking charities.
NAUPA Unclaimed Property - Unclaimed.org Missing Money.com US and Canada by state or province. Also: US Treasury Hunt Near bottom of page is "Start Search" button, need social security number.
Leapfrog Group Scores hospitals for medical errors. Mentioned in AARP Newspaper. (11/9/2012) Health Grades.com Doctor rating by patients. Pro Publica - Dollars for Docs Payment to doctors from drug companies. Wall St Journal - Medicare Payments Searchable: payments to doctors by Medicare and why.
Get Human.com Dialahuman.com Lucyphone.com Instructions for reaching a human, rather than a computer.
50 States.com Information and links.
Inflation Calculator Just for fun, 1800 to today, input $ amount and years.
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Open Street Cam Maps
Open Street Maps
Pick your favorite.
GPS Visualizer LatLong.net Provides latitude and longitude for an address.
United States Zip Code.org US Naviguide Zip code finders.
US DOT Byway's site The Most Scenic Drive in All 50 States America's Scenic Byways Wikipedia - National Scenic Byway Maps, photos, and information about America's Scenic Highways. Some are not paved and may be 4-wheel only.
Round About Publication
Location of Rest Stops on Interstate Highways, and RV Dump Stations. Use links.
Roadtrip America Plan your trip: tolls, attractions, advice.
NPS Find a park Use map or list.
RailService.com (see "Tourist Railroads & Museums") American-Rails.com (see "Tourism" bottom left) Information about historic train rides and museums.
Flight info with Google map (under Flight Map tab). Shows flight path.
FlightAware Track by flight, carrier, airport., or type of aircraft. See all the flight at a particular airport, live. Great deal of information.
FlightView Map with path, information, click for weather, etc. Try Go Live with Detail View
Wunderground Site Map: under Travel heading: weather planning for your trip.
Arbor Day Foundation Tree Identification Guide "What tree is that?"
Gas Buddy Gas and Diesel prices.
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National Phone Number Registry (use numbers only) Lookup phone number, including Reverse Lookup
SpeedTest.net - Beta (Recommended by HowToGeek.com) Bandwidth Place SpeedDot - Graphs speed DSLReports - Letter Grade Test My Speed.net - Up Down or Both NetFlix - Fast.com Speed tests.
Gibson Research Test your firewall.
Gibson Research "Haystack"(Time to break) How Secure is My Password? The Password Meter Strength Test Online password checkers.
QualysSSL Labs Test security on web sites you use.
Check your browser Test security of your browser.
ColorCombo.com - Color Tester Page Test various background and text colors for web design.
Update: Friday, May 18, 2018 - 23:14 ET