Known bad extensions that have had security issues, make sure that if we are using them that we are using the latest version
Vulnerable Extensions List
Add YouTube to the web site.
AyTube4CB is available at €35 for a single site licence and includes email support and unlimited future updates to the software. So if future versions of AyTube4CB contain new features, you will not miss out
DT Register is THE EVENT REGISTRATION component for Joomla that gives you the ability to take online registrations with or without fees\n\nThis is the other main player in the Joomla registration modules, appear to be very good, with a lot fewer negative reviews\n\n$60 single site, $475 developer (source code i assume)
This component allows you to post and administer your events, classes, and any kind of event you can imagine on your website and optionally charge for the tickets to your events
$119, has some negative feedback, but lots of good
we would need to have source code to tweak
suppose to work with Community Builder
This is a simple component to let you change your Joomla Database Table Prefix
we had to use the default prefix for the migration, we may want to move it to something other than the default to help with security
A simple newsletter component with subscriber management and HTML/image embedding capabilities
could be useful for communicating with partners, visitors, coordinators......