Here are some links to websites with information about Freemasonry.
The Most Worshipful Grand Lodge of Washington, F & AM
For a good overview of Freemasonry in Washington, see the official site of for Blue Lodges in Washington state (https://freemason-wa.org).
Builders: a Story and Study of Masonry
I find this the most inspirational book about Freemasonry I have read. No secrets revealed, but a deep and scholarly dive into the principles and understanding of an accomplished Master Mason as well as very interesting historic precedents to the Craft. For more comments see "The Builders" in Initiate's blog. A free copy is at Gutenberg.org.
California Freemason (it's an app!)
I found this publication of the Masons of California. It is a quality, semi-monthly publication with interesting and relevant articles about a variety of topics of Freemasonry. You can find more information about the California Freenason app as well as a link to download it. The app is available for most mobile devices.
The Educator
The Educator website, published by Bro. Norm McEvoy, consists of articles and papers relating to the history, philosophy and numerous other subjects relevant to Freemasonry, and its many aspects. The Educator is devoted to Masonic education. (https://theeducator.ca).
Masonic Lodge of Education
Here's an unofficial site for learning basic facts about Freemasonry, especially some unwritten ones abou etiquette, rules and procedures: (http://www.masonic-lodge-of-education.com).
Wikipedia on Freemasonry
Wikipedia has an introduction to Freemasonry: (https://en.wikipedia.org/wiki/Freemasonry).
Freemasonry in the media
history.com
This YouTube video from the History Channel, Secret History of the Freemasonry Movement (https://www.youtube.com/watch?v=1EYHlfRhxfc) looks at the intricate relationships between ancient history, the Enlightenment and the rise of Democracy.
A blog about freedom and Freemasonry
This blog post from a well-known blogger, John Michael Greer, reveals relationships between the historical movement toward individual freedom and Freemasonry. It is also a helpful introduction to the animosity directed toward Freemasonry by the Roman Catholic church. (http://www.ecosophia.net/thing-called-freedom/).
Nine actual facts about Freemasonry
This article from CBS News has additional links to websites about Freemasonry: (http://www.cbsnews.com/news/9-things-you-didnt-know-about-freemasonry/).
Brotherhood, not myths
National Public Radio published an article about renewal in Freemasonry. New Masons Drawn by brotherhood, not Myths: (http://www.npr.org./templates/story/story.php?storyId=9981492).
Dan Brown's myths about Freemasonry
Dan Brown has written fictional novels including assertions about Freemasonry. Here's some information regarding his book The Lost Symbol: (http://news.nationalgeographic.com/news/2009/09/090915-lost-symbol-dan-brown-freemasons-book.html).
Freemasonry can be seen as a beautiful system of morality, veiled in allegory and illustrated by symbols. The symbolism is mainly, but not exclusively, drawn from the manual tools of stonemasons - the square and compasses, the level and plumb rule, and the trowel, among others. A moral lesson is attached to each of these tools... The meaning of the symbolism is taught and explored through ritual. - from Wikipedia
Here are some links to websites with information about Freemasonry.
Masonic Lodge of Education
The Masonic Lodge of Education includes an extensive list of symbols and their meanings: (http://www.masonic-lodge-of-education.com/freemason-symbols.html).
The Masonic Apron
Each initiate, upon entering the Order, receives a symbolic apron, which is to be worn during all Masonic meetings and rituals.  This article shows the Masonic apron of Meriwether Lewis and explains the meaning of its rich symbolism.