diff --git a/src/main/java/org/scribe/extractors/BaseStringExtractorImpl.java b/src/main/java/org/scribe/extractors/BaseStringExtractorImpl.java
index ebaf20a..73442b9 100644
--- a/src/main/java/org/scribe/extractors/BaseStringExtractorImpl.java
+++ b/src/main/java/org/scribe/extractors/BaseStringExtractorImpl.java
@@ -36,7 +36,7 @@ public class BaseStringExtractorImpl implements BaseStringExtractor
     MapUtils.decodeAndAppendEntries(request.getBodyParams(), params);
     MapUtils.decodeAndAppendEntries(request.getOauthParameters(), params);
     params = MapUtils.sort(params);
-    return URLUtils.percentEncode(URLUtils.concatSortedPercentEncodedParams(params));
+    return URLUtils.percentEncode(MapUtils.concatSortedPercentEncodedParams(params));
   }
 
   private void checkPreconditions(OAuthRequest request)
diff --git a/src/main/java/org/scribe/model/Request.java b/src/main/java/org/scribe/model/Request.java
index a9c332a..f40794d 100644
--- a/src/main/java/org/scribe/model/Request.java
+++ b/src/main/java/org/scribe/model/Request.java
@@ -177,7 +177,7 @@ class Request
     {
       Map<String, String> params = new HashMap<String, String>();
       String queryString = new URL(url).getQuery();
-      params.putAll(URLUtils.queryStringToMap(queryString));
+      params.putAll(MapUtils.queryStringToMap(queryString));
       params.putAll(this.querystringParams);
       return params;
     }
diff --git a/src/main/java/org/scribe/utils/MapUtils.java b/src/main/java/org/scribe/utils/MapUtils.java
index a77e4b6..a5076b3 100644
--- a/src/main/java/org/scribe/utils/MapUtils.java
+++ b/src/main/java/org/scribe/utils/MapUtils.java
@@ -9,6 +9,10 @@ import java.util.*;
  */
 public class MapUtils
 {
+  private static final String EMPTY_STRING = "";
+  private static final String PAIR_SEPARATOR = "=";
+  private static final String PARAM_SEPARATOR = "&";
+
   /**
    * Sorts a Map
    * 
@@ -48,4 +52,43 @@ public class MapUtils
       target.put(URLUtils.percentEncode(key), URLUtils.percentEncode(source.get(key)));
     }
   }
+
+  /**
+   * Concats a key-value map into a querystring-like String
+   *
+   * @param params key-value map
+   * @return querystring-like String
+   */
+  public static String concatSortedPercentEncodedParams(Map<String, String> params)
+  {
+    StringBuilder result = new StringBuilder();
+    for (String key : params.keySet())
+    {
+      result.append(key).append(PAIR_SEPARATOR);
+      result.append(params.get(key)).append(PARAM_SEPARATOR);
+    }
+    return result.toString().substring(0, result.length() - 1);
+  }
+
+  /**
+   * Parses and form-urldecodes a querystring-like string into a map
+   *
+   * @param queryString querystring-like String
+   * @return a map with the form-urldecoded parameters
+   */
+  public static Map<String, String> queryStringToMap(String queryString)
+  {
+    Map<String, String> result = new HashMap<String, String>();
+    if (queryString != null && queryString.length() > 0)
+    {
+      for (String param : queryString.split(PARAM_SEPARATOR))
+      {
+        String pair[] = param.split(PAIR_SEPARATOR);
+        String key = URLUtils.formURLDecode(pair[0]);
+        String value = pair.length > 1 ? URLUtils.formURLDecode(pair[1]) : EMPTY_STRING;
+        result.put(key, value);
+      }
+    }
+    return result;
+  }
 }
diff --git a/src/main/java/org/scribe/utils/URLUtils.java b/src/main/java/org/scribe/utils/URLUtils.java
index eb82e46..745e113 100644
--- a/src/main/java/org/scribe/utils/URLUtils.java
+++ b/src/main/java/org/scribe/utils/URLUtils.java
@@ -133,47 +133,6 @@ public class URLUtils
     }
   }
 
-  /**
-   * Concats a key-value map into a querystring-like String
-   *
-   * @param params key-value map
-   * @return querystring-like String
-   */
-  // TODO Move to MapUtils
-  public static String concatSortedPercentEncodedParams(Map<String, String> params)
-  {
-    StringBuilder result = new StringBuilder();
-    for (String key : params.keySet())
-    {
-      result.append(key).append(PAIR_SEPARATOR);
-      result.append(params.get(key)).append(PARAM_SEPARATOR);
-    }
-    return result.toString().substring(0, result.length() - 1);
-  }
-
-  /**
-   * Parses and form-urldecodes a querystring-like string into a map
-   *
-   * @param queryString querystring-like String
-   * @return a map with the form-urldecoded parameters
-   */
-  // TODO Move to MapUtils
-  public static Map<String, String> queryStringToMap(String queryString)
-  {
-    Map<String, String> result = new HashMap<String, String>();
-    if (queryString != null && queryString.length() > 0)
-    {
-      for (String param : queryString.split(PARAM_SEPARATOR))
-      {
-        String pair[] = param.split(PAIR_SEPARATOR);
-        String key = formURLDecode(pair[0]);
-        String value = pair.length > 1 ? formURLDecode(pair[1]) : EMPTY_STRING;
-        result.put(key, value);
-      }
-    }
-    return result;
-  }
-
   private static final class EncodingRule
   {
     private final String ch;