diff --git a/sources.org b/sources.org
index 77513d2..b1bdeb4 100644
--- a/sources.org
+++ b/sources.org
@@ -8,9 +8,12 @@
 * Flight data
 - https://www.adsbexchange.com/
 
-* Shodan
-- https://shodan.io
-
 * Pastebin-like websites
 ** Pastebin 
    - https://git.mcdevitt.tech/bpmcdevitt/pastebinner
+* Analysis
+** Tools 
+- shodan https://shodan.io
+- maltego - https://docs.paterva.com/en/user-guide/getting-started/
+** Link Analysis
+   - https://en.wikipedia.org/wiki/Link_analysis