diff --git a/math/index.wiki b/math/index.wiki
index 394742b..a2580c0 100644
--- a/math/index.wiki
+++ b/math/index.wiki
@@ -12,3 +12,7 @@ The purest study of them all
 * [[relative_prime]]
 * [[modular_inverse]]
 * [[euclidean_algorithm]]
+
+=== Computer Science ===
+
+* [[markov_chain]]
diff --git a/math/markov_chain.wiki b/math/markov_chain.wiki
new file mode 100644
index 0000000..52e9985
--- /dev/null
+++ b/math/markov_chain.wiki
@@ -0,0 +1,9 @@
+= Markov Chains =
+
+Markov chains are a way of representing states and the probablility of other
+states occouring, when a given state is present. A markov chain is a type of
+state diagram.
+
+== Explanation ==
+
+A markov chain is often represented as a
diff --git a/tech/BFS.wiki b/tech/BFS.wiki
new file mode 100644
index 0000000..d208b96
--- /dev/null
+++ b/tech/BFS.wiki
@@ -0,0 +1 @@
+= Breadth First Search =
diff --git a/tech/DFS.wiki b/tech/DFS.wiki
new file mode 100644
index 0000000..6edb4fd
--- /dev/null
+++ b/tech/DFS.wiki
@@ -0,0 +1 @@
+= Depth First Search =
diff --git a/tech/algorithms.wiki b/tech/algorithms.wiki
index 58c6418..c75668b 100644
--- a/tech/algorithms.wiki
+++ b/tech/algorithms.wiki
@@ -22,6 +22,11 @@ Different ways to store and operate on data, with differing efficiency
 * [[avl_tree|AVL Tree]]
 * [[kd_tree|KD Tree]]
 
+== Common Algorithms ==
+
+* [[BFS]]
+* [[DFS]]
+
 == Sorting ==
 
 * [[quicksort|Quicksort]]
diff --git a/tech/graph.wiki b/tech/graph.wiki
new file mode 100644
index 0000000..f3a732a
--- /dev/null
+++ b/tech/graph.wiki
@@ -0,0 +1,16 @@
+= Graph =
+
+A Graph is a type of data structure consisting of nodes and linkages between
+these nodes, often represented as pointers. Links between nodes can have the
+option of carrying associated weights or costs to them. They can also either be
+directional, bi-directional, or carry no direction.
+
+Any link between two nodes is known as an *edge*, while the nodes are often
+known as *vertexes*. Graphs can be used for a large variety of modeling
+exercises, including Social networks, computer networks, and abstract
+applications including [[../math/markov_chain|Markov Chians]].
+
+== Algorithms ==
+
+* [[BFS]]
+* [[DFS]]