diff --git a/README.md b/README.md
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+++ b/README.md
@@ -290,7 +290,6 @@ algorithms, knowledgebase and AI technology.
 * [Social Searcher](http://www.social-searcher.com)
 * [SocialBakers](http://www.socialbakers.com)
 * [SocialBlade](http://socialblade.com)
-* [SocialGrep](https://socialgrep.com) - a Reddit search engine/analysis tool, "signals out of the social web of noise."
 * [Tagboard](https://tagboard.com)
 * [TheWebCo](https://thewebco.ai) - The single source of people intelligence.
 * [Trackur](http://www.trackur.com)
@@ -347,11 +346,16 @@ algorithms, knowledgebase and AI technology.
 
 *Tools to help discover more about a reddit user or subreddit.*
 
+* [Arctic Shift](https://github.com/ArthurHeitmann/arctic_shift) - A tool for accessing and interacting with large dumps of Reddit data, offering an API and web interface for research and moderation purposes.
 * [Imgur](http://imgur.com/search?q=) - The most popular image hosting website used by redditors.
 * [Mostly Harmless](http://kerrick.github.io/Mostly-Harmless/#features) - Mostly Harmless looks up the page you are currently viewing to see if it has been submitted to reddit.
+* [Pushshift API](https://pushshift.io/) - A powerful API that provides access to historical Reddit data, including posts, comments, and metadata for analysis and research—more information [here](https://www.reddit.com/r/pushshift/).
+* [Pullpush](https://pullpush.io/) - PullPush is a service for the indexing and retrieval of content that Reddit users have submitted to Reddit. Helpful for finding deleted/removed posts & comments.
+* [REDARCS](https://the-eye.eu/redarcs/) - Reddit archives 2005-2023.
 * [Reddit Archive](http://www.redditarchive.com) - Historical archives of reddit posts.
 * [Reddit Suite](https://chrome.google.com/webstore/detail/reddit-enhancement-suite/kbmfpngjjgdllneeigpgjifpgocmfgmb) - Enhances your reddit experience.
 * [Reddit User Analyser](https://atomiks.github.io/reddit-user-analyser/) - reddit user account analyzer.
+* [RedditMetis](https://redditmetis.com/) - RedditMetis is a Reddit user analysis tool to see the summary and statistics for a Reddit account, including top posts and user activity etc.
 * [Subreddits](http://subreddits.org) - Discover new subreddits.
 * [Reddit Comment Search](https://redditcommentsearch.com/) - Analyze a reddit users by comment history.
 * [Universal Scammer List](https://universalscammerlist.com/) - This acts as the website-portion for the subreddit /r/universalscammerlist. That subreddit, in conjuction with this website and a reddit bot, manages a list of malicious reddit accounts and minimizes the damage they can deal. This list is referred to as the "USL" for short.