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@@ -1,7 +1,15 @@
 ## Useful links
 
-https://cplusplus.com/reference/cstdio/
+Standard C library:
 
-https://ocw.mit.edu/courses/6-087-practical-programming-in-c-january-iap-2010/
+* https://cplusplus.com/reference/cstdio/
 
-https://ocw.mit.edu/courses/6-096-introduction-to-c-january-iap-2011/
+C++ string and vector class:
+
+* https://cplusplus.com/reference/string/
+* https://cplusplus.com/reference/vector/vector/
+
+Lectures: 
+
+* https://ocw.mit.edu/courses/6-087-practical-programming-in-c-january-iap-2010/
+* https://ocw.mit.edu/courses/6-096-introduction-to-c-january-iap-2011/