diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/selector/thread/CountableThreadPool.java b/webmagic-core/src/main/java/us/codecraft/webmagic/selector/thread/CountableThreadPool.java
index 0121cf25..b20ff155 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/selector/thread/CountableThreadPool.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/selector/thread/CountableThreadPool.java
@@ -10,7 +10,7 @@ import java.util.concurrent.locks.ReentrantLock;
  * Thread pool for workers.<br></br>
  * Use {@link java.util.concurrent.ExecutorService} as inner implement. <br></br>
  * New feature: <br></br>
- * 1. Block when thread pool is full to avoid poll many urls but not process. <br></br>
+ * 1. Block when thread pool is full to avoid poll many urls without process. <br></br>
  * 2. Count of thread alive for monitor.
  *
  * @author code4crafer@gmail.com
diff --git a/webmagic-extension/src/main/java/us/codecraft/webmagic/configurable/ConfigurablePageProcessor.java b/webmagic-extension/src/main/java/us/codecraft/webmagic/configurable/ConfigurablePageProcessor.java
index 36615d8d..902dfddb 100644
--- a/webmagic-extension/src/main/java/us/codecraft/webmagic/configurable/ConfigurablePageProcessor.java
+++ b/webmagic-extension/src/main/java/us/codecraft/webmagic/configurable/ConfigurablePageProcessor.java
@@ -3,12 +3,14 @@ package us.codecraft.webmagic.configurable;
 import us.codecraft.webmagic.Page;
 import us.codecraft.webmagic.Site;
 import us.codecraft.webmagic.processor.PageProcessor;
+import us.codecraft.webmagic.utils.Experimental;
 
 import java.util.List;
 
 /**
  * @author code4crafter@gmail.com <br>
  */
+@Experimental
 public class ConfigurablePageProcessor implements PageProcessor {
 
     private Site site;
diff --git a/webmagic-extension/src/main/java/us/codecraft/webmagic/monitor/SpiderMonitor.java b/webmagic-extension/src/main/java/us/codecraft/webmagic/monitor/SpiderMonitor.java
index 0783b7e9..ea9b374e 100644
--- a/webmagic-extension/src/main/java/us/codecraft/webmagic/monitor/SpiderMonitor.java
+++ b/webmagic-extension/src/main/java/us/codecraft/webmagic/monitor/SpiderMonitor.java
@@ -5,8 +5,7 @@ import org.slf4j.LoggerFactory;
 import us.codecraft.webmagic.Request;
 import us.codecraft.webmagic.Spider;
 import us.codecraft.webmagic.SpiderListener;
-import us.codecraft.webmagic.processor.example.GithubRepoPageProcessor;
-import us.codecraft.webmagic.processor.example.OschinaBlogPageProcessor;
+import us.codecraft.webmagic.utils.Experimental;
 import us.codecraft.webmagic.utils.IPUtils;
 
 import javax.management.JMException;
@@ -30,6 +29,7 @@ import java.util.concurrent.atomic.AtomicInteger;
  * @author code4crafer@gmail.com
  * @since 0.5.0
  */
+@Experimental
 public class SpiderMonitor {
 
     private enum Type {
@@ -226,22 +226,4 @@ public class SpiderMonitor {
         return this;
     }
 
-    public static void main(String[] args) throws Exception {
-
-        Spider oschinaSpider = Spider.create(new OschinaBlogPageProcessor())
-                .addUrl("http://my.oschina.net/flashsword/blog").thread(2);
-        Spider githubSpider = Spider.create(new GithubRepoPageProcessor())
-                .addUrl("https://github.com/code4craft");
-
-        SpiderMonitor spiderMonitor = new SpiderMonitor();
-        spiderMonitor.register(oschinaSpider, githubSpider);
-        //If you want to connect it from remote, use spiderMonitor.server().jmxStart();
-        //ONLY ONE server can start for a machine.
-        //Others will be registered
-        spiderMonitor.server().jmxStart();
-        oschinaSpider.start();
-        githubSpider.thread(10).start();
-
-    }
-
 }