INTERNET

DUCKDUCKGO SEARCH ENGINE (NOT AN APP - COPY URL TO YOUR BROWSER)
RECOMMENDED.  Better than Google despite its strange name, for example it indicates sponsored links much clearer. I rarely use Google any more.
For scientific searches I have found it to be better than Google.

THUNDERBIRD
Email client from Mozilla. Excellent.

GOOGLE EARTH
Downloadable file that, once executed, allows you to zoom into anywhere on the planet (down to street level). Requires broadband connection since it
functions online. Also requires a 'good' video processor (as defined by Google). It is possible that you now have to have a Google account to install this.

WEB EXPRESS (FROM THIS LINK GO TO /WPK/WEBEX/webex.exe)
NOT IMMEDIATELY AVAILABLE ON WIN10 BUT SEE BELOW FOR A WORKAROUND
RECOMMENDED.  This web site creator was used to create the present website and is now free. Just unzip the folder that this link points to -
this  yields the executable file. It  supports features not used in this website such as frames and forms but does not support rollovers nor secure ftp uploads
(some web hosting sites will therefore not accept them). However, secure ftp uploads can be accomplished using third party ftp apps. 
USER MANUAL HERE
WORKAROUND FOR WIN10
(1) Make sure all unsuccessful previous attempts are deleted, using  REVO UNINSTALLER to delete ALL associated files.
(2) Download from the usual source WEB EXPRESS .(see above). This will save the appropriate software in the default Win10 directory (this PC/Downloads).
(3) Locate and unzip the exe file (WPK/WEBEX).
(4) Right click the exe file and  select properties
(5) Select compatability
(6) Select Win7 as the new OS in the "run this in ..."
(7) Select "run"
(8) From the exe files do not select the logo for webex but the one below it to ensure the site map is displayed on the left.