Minds
Mastodon
X (Twitter)
Facebook
Diaspora
Gab
Reddit
Friendica
Followup.cc
FollowUpThen
Gmelius
Boomerang for Gmail
Right Inbox
Onesheet CRM
Mailbutler
SendRecurring
Minds Followup.ccFollowup.cc might be a bit more popular than Minds. We know about 1 link to it since March 2021 and only 1 link to Minds. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
There are other projects like minds.com which is also starting to catch some attention. My biggest concern is that the big tech companies catch these trends and start to more actively censor their search results or in other way hinder their growth such as lobbying for stricter regulation to take out any competition. Tech such as recommendation systems run by cost and competence intensive machine-learning is also... Source: almost 3 years ago
I'll update this if I find more. For now, this seems to be a partial solution. It's a Gmail add on (except I don't use Gmail) that adds reminders. The options when setting reminders include cancelling it if someone replies, and to remind everyone in the thread. If you combine those two, it seems like — if you use Gmail's web client and have $23/month you're dying to get rid of — a decent way to add the feature. Source: over 1 year ago
Mastodon - Mastodon is a decentralized, open source social network. This is just one part of the network, run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome!
FollowUpThen - The simplest way to schedule an email reminder
X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.
Gmelius - Gmelius is the first collaboration platform designed for G Suite and your company's daily tools.
Facebook - Connect with friends, family and other people you know. Share photos and videos, send messages and get updates.
Boomerang for Gmail - Boomerang for Gmail is a Firefox / Chrome plugin that lets you take control of when you send and receive email messages.