US Naval Observatory Eclipse 2017 (Eclipse Calculator) - This website from the US Naval Observatory includes a calculator that allows users to input a state and city name to determine the start time and extent of the eclipse. Based on the calculator Macomb, Illinois will see a 95% eclipse which will start at 11:48:32 AM on August 21, 2017.
NOAA UTC to Local Time Conversion Table - While the Naval Observatory gives the start time for the eclipse in almost any location in the United States, the start time is in Zulu or Coordinated Universal Time (UTC). This website can be used to convert UTC to any time zone in the continental United States.
Several online maps showing the path of totality in the United States. The following maps could be useful for people who want to find a place to view the eclipse in person.
NASA Total Solar Eclipse Map - This is NASA's official map showing the path of the total solar eclipse that will occur on August 21, 2017. The lines on either side of the path of totality show the extent of the partial eclipse in North America; the images on those lines show the approximate appearance of an eclipse of that magnitude..
NASA Solar Eclipse Visualizations - NASA has developed a number of map-based visualizations of the eclipse. In particular view the third visualization of the 2017 Total Solar Eclipse in the United States. There are several versions of this visualization. One of them (near the bottom of the page) has images to either side of the path of totality that show how the eclipse will look in a given location.
American Astronomical Society Eclipse Map - This map from the American Astronomical Society shows the path of totality and the extent of the partial eclipse in the United States.
NASA Interactive Eclipse Map - Click on the link to the left or the image below to link to NASA's interactive map showing the path of totality on a Google Map background. It can be zoomed so that users can find a place to view the total eclipse.
NASA State Maps Showing the Total Eclipse - This site, from the Eclipse 101 section of the NASA Eclipse website, contains a set of maps showing the path of totality across each state.
3-D Printable Pinhole Projector Maps - NASA has developed STL files for the Solar Eclipse that can be used to print pinhole projector maps for use during the solar eclipse. They are listed under Activities on the NASA Eclipse website.
World Atlas of Solar Eclipse Paths - this NASA website, developed by retired NASA scientist Fred Espenak, contains links to maps showing the tracks of historical eclipses throughout the World. It also contains links to a catalog of eclipses by century.
Maps of Solar Eclipses in North America - this NASA website contains links to maps showing the path of total and annular solar eclipses in North America from 1851 to 2100.