diff --git a/README.md b/README.md
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--- a/README.md
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@@ -317,10 +317,18 @@ A certain amount of (domain- or business-specific) analysis is necessary to crea
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-            <a href="https://www.iblocklist.com/lists" target="_blank">I-Blocklist</a>
+            <a href="https://infosec.cert-pa.it" target="_blank">Infosec - CERT-PA</a>
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-            I-Blocklist maintains several types of lists containing IP addresses belonging to various categories. Some of these main categories include countries, ISPs and organizations. Other lists include web attacks, TOR, spyware and proxies. Many are free to use, and available in various formats.
+            Malware samples <a href="https://infosec.cert-pa.it/analyze/submission.html" target="_blank">collection and analysis</a>, <a href="https://infosec.cert-pa.it/analyze/statistics.html" target="_blank">blocklist service, <a href="https://infosec.cert-pa.it/cve.html">vulnerabilities database</a> and more. Created and managed my <a href="https://www.cert-pa.it">CERT-PA</a>
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+            <a href="https://raw.githubusercontent.com/stamparm/ipsum/master/ipsum.txt" target="_blank">IPsum</a>
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+            IPsum is a threat intelligence feed based on 30+ different publicly available lists of suspicious and/or malicious IP addresses. All lists are automatically retrieved and parsed on a daily (24h) basis and the final result is pushed to this repository. List is made of IP addresses together with a total number of (black)list occurrence (for each). Created and managed by <a href="https://twitter.com/stamparm">Miroslav Stampar</a>.
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