[Hadoop Wiki] Update of "FrontPage" by QwertyManiac

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The "FrontPage" page has been changed by QwertyManiac.
The comment on this change is: Remove some spam links....
http://wiki.apache.org/hadoop/FrontPage?action=diff&rev1=228&rev2=229

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    * HadoopUserGroups (HUGs)
    * HadoopSummit
    * HadoopWorld
-  * [[http://developer.yahoo.com/hadoop/tutorial/|Yahoo! Hadoop Tutorial]]: A thorough tutorial covering Hadoop setup, HDFS, and [[HadoopMapReduce|MapReduce]]   [[http://www.pokerplus.ro|poker online]]
+  * [[http://developer.yahoo.com/hadoop/tutorial/|Yahoo! Hadoop Tutorial]]: A thorough tutorial covering Hadoop setup, HDFS, and [[HadoopMapReduce|MapReduce]]
   * [[http://www.cloudera.com/hadoop-training-basic|Cloudera Online Hadoop Training]]: Video lectures, exercises and a pre-configured [[http://www.cloudera.com/hadoop-training-virtual-machine|virtual machine]] to follow along. Sessions cover [[http://www.cloudera.com/hadoop-training-programming-with-hadoop|Hadoop]], [[http://www.cloudera.com/hadoop-training-mapreduce-algorithms|MapReduce]], [[http://www.cloudera.com/hadoop-training-hive-introduction|Hive]], [[http://www.cloudera.com/hadoop-training-pig-introduction|Pig]] and more.
  
  == User Documentation ==
@@ -42, +42 @@

    * [[DiskSetup|Disk Setup: some suggestions]]
    * [[PerformanceTuning|Performance:]] getting extra throughput
    * [[http://v-lad.org/Tutorials/Hadoop/00%20-%20Intro.html|Hadoop Windows/Eclipse Tutorial]]: Tutorial on how to setup and configure Hadoop development cluster for Windows and Eclipse.
-   * [[http://www.merchantos.com/|Pos Software]]
-   * [[http://yourwebpa.com/|social media marketing services]]
    * [[topology_rack_awareness_scripts|Topology Scripts / Rack Awareness]]
  
   * Map/Reduce