diff --git a/README.md b/README.md
index 66a9a8a..465fec1 100644
--- a/README.md
+++ b/README.md
@@ -155,6 +155,7 @@ A curated list of awesome malware analysis tools and resources. Inspired by
   intel aggregator with deduplication featuring 90+ feeds and over 1.2M indicators.
 * [CRDF ThreatCenter](http://threatcenter.crdf.fr/) - List of new threats detected
   by CRDF anti-malware.
+* [Cybercrime tracker](http://cybercrime-tracker.net/) - Multiple botnet active tracker.
 * [FireEye IOCs](https://github.com/fireeye/iocs) - Indicators of Compromise
   shared publicly by FireEye.
 * [FireHOL IP Lists](https://iplists.firehol.org/) - Analytics for 350+ IP lists
@@ -172,6 +173,8 @@ A curated list of awesome malware analysis tools and resources. Inspired by
   C&C blocklists.
 * [Proofpoint Threat Intelligence](https://www.proofpoint.com/us/products/et-intelligence) -
   Rulesets and more. (Formerly Emerging Threats.)
+* [Ransomware overview](https://docs.google.com/spreadsheets/d/1TWS238xacAto-fLKh1n5uTsdijWdCEsGIM0Y0Hvmc5g/pubhtml) - 
+  A list of ransomware overview with details, detection and prevention.
 * [STIX - Structured Threat Information eXpression](http://stixproject.github.io) -
   Standardized language to represent and share cyber threat information.
   Related efforts from [MITRE](https://www.mitre.org/):