Googleのリッチスニペットに相当するSchema.orgのexampleをコピペしてきた。いくつか切り捨ててるのは独断。無いよりマシの精神で無理なく追加していきましょう。 動作テスト：http://www.google.com/webmasters/tools/richsnippets

schemaorg_rechsnippet_marge.html

<!--商品とレビュー -->
<!-- https://support.google.com/webmasters/answer/146750 -->
<!-- https://support.google.com/webmasters/answer/146645 -->

<div itemscope itemtype="http://schema.org/Product">
  <span itemprop="name">Kenmore White 17" Microwave</span>
  <img src="kenmore-microwave-17in.jpg" alt='Kenmore 17" Microwave' />
  <!-- 集計レビュー -->
  <div itemprop="aggregateRating"
    itemscope itemtype="http://schema.org/AggregateRating">
   Rated <span itemprop="ratingValue">3.5</span>/5
   based on <span itemprop="reviewCount">11</span> customer reviews
  </div>

   <div itemprop="offers" itemscope itemtype="http://schema.org/Offer">
    <span itemprop="price">$55.00</span>
    <link itemprop="availability" href="http://schema.org/InStock" />In stock
  </div>

  Product description:
  <span itemprop="description">0.7 cubic feet countertop microwave.
  Has six preset cooking categories and convenience features like
  Add-A-Minute and Child Lock.</span>

<!-- 個別レビュー -->
<div itemprop="review" itemscope itemtype="http://schema.org/Review">
    <span itemprop="name">Value purchase</span> -
    by <span itemprop="author">Lucas</span>,
    <meta itemprop="datePublished" content="2011-03-25">March 25, 2011
    <div itemprop="reviewRating" itemscope itemtype="http://schema.org/Rating">
      <meta itemprop="worstRating" content = "1"/>
      <span itemprop="ratingValue">4</span>/
      <span itemprop="bestRating">5</span>stars
    </div>
    <span itemprop="description">Great microwave for the price. It is small and
    fits in my apartment.</span>
 </div>
</div>


<!-- 人物 -->
<!-- https://support.google.com/webmasters/answer/146646 -->
<div itemscope itemtype="http://schema.org/Person">
  <span itemprop="name">Jane Doe</span>
  <img src="janedoe.jpg" itemprop="image" />

  <span itemprop="jobTitle">Professor</span>
  <div itemprop="address" itemscope itemtype="http://schema.org/PostalAddress">
    <span itemprop="streetAddress">
      20341 Whitworth Institute
      405 N. Whitworth
    </span>
    <span itemprop="addressLocality">Seattle</span>,
    <span itemprop="addressRegion">WA</span>
    <span itemprop="postalCode">98052</span>
  </div>
  <span itemprop="telephone">(425) 123-4567</span>
  <a href="mailto:jane-doe@xyz.edu" itemprop="email">
    jane-doe@xyz.edu</a>

  Jane's home page:
  <a href="http://www.janedoe.com" itemprop="url">janedoe.com</a>


</div>


<!-- 会社と組織 -->
<!-- https://support.google.com/webmasters/answer/146861 -->
<div itemscope itemtype="http://schema.org/Organization">
  <span itemprop="name">Google.org (GOOG)</span>

Contact Details:
  <div itemprop="address" itemscope itemtype="http://schema.org/PostalAddress">
    Main address:
      <span itemprop="streetAddress">38 avenue de l'Opera</span>
      <span itemprop="postalCode">F-75002</span>
      <span itemprop="addressLocality">Paris, France</span>
    ,
  </div>
    Tel:<span itemprop="telephone">( 33 1) 42 68 53 00 </span>,
    Fax:<span itemprop="faxNumber">( 33 1) 42 68 53 01 </span>,
    E-mail: <span itemprop="email">secretariat(at)google.org</span>

Members:
- National Scientific Members in 100 countries and territories: Country1, Country2, ...
- Scientific Union Members, 30 organizations listed in this Yearbook:
  <span itemprop="member" itemscope itemtype="http://schema.org/Organization">
    Member1
  </span>,
  <span itemprop="member" itemscope itemtype="http://schema.org/Organization">
    Member2
  </span>,

</div>

<!-- レシピ -->
<!-- https://support.google.com/webmasters/answer/173379 -->
<div itemscope itemtype="http://schema.org/Recipe">
  <span itemprop="name">Mom's World Famous Banana Bread</span>
  By <span itemprop="author">John Smith</span>,
  <meta itemprop="datePublished" content="2009-05-08">May 8, 2009
  <img itemprop="image" src="bananabread.jpg" />

  <span itemprop="description">This classic banana bread recipe comes
  from my mom -- the walnuts add a nice texture and flavor to the banana
  bread.</span>

  Prep Time: <meta itemprop="prepTime" content="PT15M">15 minutes
  Cook time: <meta itemprop="cookTime" content="PT1H">1 hour
  Yield: <span itemprop="recipeYield">1 loaf</span>

  <div itemprop="nutrition"
    itemscope itemtype="http://schema.org/NutritionInformation">
    Nutrition facts:
    <span itemprop="calories">240 calories</span>,
    <span itemprop="fatContent">9 grams fat</span>
  </div>

  Ingredients:
  - <span itemprop="ingredients">3 or 4 ripe bananas, smashed</span>
  - <span itemprop="ingredients">1 egg</span>
  - <span itemprop="ingredients">3/4 cup of sugar</span>
  ...

  Instructions:
  <span itemprop="recipeInstructions">
  Preheat the oven to 350 degrees. Mix in the ingredients in a bowl. Add
  the flour last. Pour the mixture into a loaf pan and bake for one hour.
  </span>

  140 comments:
  <meta itemprop="interactionCount" content="UserComments:140" />
  From Janel, May 5 -- thank you, great recipe!
  ...
</div>


<!-- イベント -->
<!-- https://support.google.com/webmasters/answer/164506 -->
<div class="event-wrapper" itemscope itemtype="http://schema.org/Event">

  <div class="event-date" itemprop="startDate" content="2013-09-14T21:30">Sat Sep 14</div>
  <div class="event-title" itemprop="name">Typhoon with Radiation City</div>

  <div class="event-venue" itemprop="location" itemscope itemtype="http://schema.org/Place">
    <span itemprop="name">The Hi-Dive</span>
    <div class="address" itemprop="address" itemscope itemtype="http://schema.org/PostalAddress">
      <span itemprop="streetAddress">7 S. Broadway</span><br>
      <span itemprop="addressLocality">Denver</span>,
      <span itemprop="addressRegion">CO</span>
      <span itemprop="postalCode">80209</span>
    </div>
  </div>

  <div class="event-time">9:30 PM</div>

 <span itemprop="offers" itemscope itemtype="http://schema.org/Offer">
  <div class="event-price" itemprop="price">$13.00</div>
  <a itemprop="url" href="http://www.ticketfly.com/purchase/309433">Tickets</a>
 </span>
</div>

<!-- 音楽（アルバムと楽曲）-->
<!-- https://support.google.com/webmasters/answer/1623047 -->
<div itemscope itemtype="http://schema.org/MusicAlbum">
  <h1 itemprop="name"> King of Limbs </h1>
  <meta content="/artist/radiohead/album/the-king-of-limbs" itemprop="url" />
  <img src="king-of-limbs.jpg" itemprop="image" />
  <meta content="8" itemprop="numTracks" />
  <meta content="Alt/Punk" itemprop="genre" />

  <h2 itemprop="byArtist" itemscope itemtype="http://schema.org/MusicGroup">
    <span itemprop="name">Radiohead</span>
  </h2>

  <h3>Sample Tracks</h3>
    <div itemprop="track" itemscope itemtype="http://schema.org/MusicRecording">
      <span itemprop="name">Bloom</span>
        <meta content="/artist/radiohead/album/the-king-of-limbs/track/bloom" itemprop="url" />
        <meta content="PT5M14S" itemprop="duration" />5:14
      </span>
    </div>
    <div itemprop="track" itemscope itemtype="http://schema.org/MusicRecording">
    <span itemprop="name">Morning Mr Magpie</span>
      <meta content="/artist/radiohead/album/the-king-of-limbs/track/morning-mr-magpie" itemprop="url" />
      <meta content="PT4M40S" itemprop="duration" />4:40
    </span>
  </div>
</div>