Many popular publishing platforms have standardized RSS and iCal feeds, but they are not always easy to find. Here are some patterns to watch for.
Wordpress is a popular web publishing platform. Some sites (such as
the House of Friendship site below) are on wordpress.com, but others
(such as the Chamber of Commerce site) are standalone.
To get an RSS feed from Wordpress sites, append /feed to the URL.
For example, to get the RSS feed for https://greaterkwchamber.com,
use https://greaterkwchamber.com/feed .
Sometimes Wordpress blog posts are organized with "tags". These tags often come with feeds of their own. For example, the House of Friendship Emergency Food Assistance has a blog at https://hofemergencyfoodassistance.wordpress.com . Some of their posts are tagged "12-days-4-good". To get an RSS feed for these posts, use https://hofemergencyfoodassistance.wordpress.com/tag/12-days-4-good/feed/
To get an RSS feed from Blogger blogs, append
/feeds/posts/default?alt=rss to the URL. For example, Little City
Farm's blog at
https://littlecityfarm.blogspot.com has an RSS feed at
https://littlecityfarm.blogspot.com/feeds/posts/default?alt=rss
YouTube channels come with secret RSS feeds, but they are tricky to
find, because you need the channel ID. When you are lucky, that ID is
available by looking at the website address. For example, Gheorghe
Curelet-Balan's channel has the address
https://www.youtube.com/channel/UCXHoWbomeIbTcfJeIwpRGbQ, and his
channel ID is UCXHoWbomeIbTcfJeIwpRGbQ.
When you are not lucky and the channel has a human-friendly name, such as the RARE reserve's channel at https://www.youtube.com/user/raresites then getting the channel ID can be trickier. Lately (as of 2021) it seems as if Youtube translates the human name into one with a channel ID in the address bar, but otherwise the service at https://commentpicker.com/youtube-channel-id.php seems to work well enough to get the channel ID.
Once you have a channel ID, the form of the RSS feed is
https://www.youtube.com/feeds/videos.xml?channel_id=<channel_ID>.
For example, to get a feed of the videos on Gheorghe's
channel, use
https://www.youtube.com/feeds/videos.xml?channel_id=UCXHoWbomeIbTcfJeIwpRGbQ
Medium is a blogging platform. To get an RSS feed for a blog, insert
/feed between medium.com and the username. For example, to get an
RSS feed for the KPL Chapter One blog at
https://medium.com/central-kw, use
https://medium.com/feed/central-kw .
Substack is another blogging platform. To get an RSS feed of a blog,
add /feed to the end. For example to get an RSS feed for the TL;WR
newsletter at https://tlwr.substack.com, use
https://tlwr.substack.com/feed .
To get an RSS feed on a Reddit forum, .rss to the address of the
subreddit. For example, to get an RSS feed for the Kitchener subreddit
at https://www.reddit.com/r/kitchener, use
https://www.reddit.com/r/kitchener.rss
Tumblr was once a popular blogging platform. Append /rss to the
Tumblr address for an RSS feed. For example, to get an RSS feed for
Matthew King's photo blog at https://birdsbeesblooms.tumblr.com/,
use https://birdsbeesblooms.tumblr.com/rss .