diff --git a/oedo03/bg.png b/oedo03/bg.png
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diff --git a/oedo03/fontawesome-webfont-e1d24281fe5ce77ffd3093e240ec420d.woff b/oedo03/fontawesome-webfont-e1d24281fe5ce77ffd3093e240ec420d.woff
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diff --git a/oedo03/index.html b/oedo03/index.html
index 15626e5..6eaa2fb 100644
--- a/oedo03/index.html
+++ b/oedo03/index.html
@@ -23,7 +23,7 @@
     </nav>
   </header>
 <div class="main_img">
-  <img alt="Main_img" src="/oedo03/main_img-32e1a7d1dbef48103cbd972dfa648cc0.png" />
+  <img alt="Main_img" src="/oedo03/main_img.png" />
 </div>
 <div class="maintext about">
 	<section>
@@ -96,7 +96,7 @@ <h2>キャンセルについて</h2>
     <section id="contacts">
       <ul>
         <li><a href="http://twitter.com/OedoRubyKaigi"><i class="icon-twitter"></i><span class="pc">follow on </span>Twitter</a></li>
-        <li><a href="http://lanyrd.com/2013/oedorubykaigi"><img alt="Lanyrd" src="/oedo03/lanyrd-860448c9163ae64f4af783f20b49b837.png" /><span class="pc">Check us on </span>Lanyrd</a></li>
+        <li><a href="http://lanyrd.com/2013/oedorubykaigi"><img alt="Lanyrd" src="/oedo03/lanyrd.png" /><span class="pc">Check us on </span>Lanyrd</a></li>
         <li><a href="http://asakusarb.doorkeeper.jp/group_contacts/new"><i class="icon-envelope"></i>Contact<span class="pc"> Form</span></a></li>
       </ul>
     </section>
diff --git a/oedo03/lanyrd.png b/oedo03/lanyrd.png
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index 0000000..e5d5779
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diff --git a/oedo03/main_img.png b/oedo03/main_img.png
new file mode 100644
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diff --git a/oedo03/no_icon.png b/oedo03/no_icon.png
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diff --git a/oedo03/rails.png b/oedo03/rails.png
new file mode 100644
index 0000000..d5edc04
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diff --git a/oedo03/register.png b/oedo03/register.png
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diff --git a/oedo03/schedule/index.html b/oedo03/schedule/index.html
index 2777e23..81aa87d 100644
--- a/oedo03/schedule/index.html
+++ b/oedo03/schedule/index.html
@@ -98,7 +98,7 @@ <h3>17:35-17:50 Closing</h3>
     <section id="contacts">
       <ul>
         <li><a href="http://twitter.com/OedoRubyKaigi"><i class="icon-twitter"></i><span class="pc">follow on </span>Twitter</a></li>
-        <li><a href="http://lanyrd.com/2013/oedorubykaigi"><img alt="Lanyrd" src="/oedo03/lanyrd-860448c9163ae64f4af783f20b49b837.png" /><span class="pc">Check us on </span>Lanyrd</a></li>
+        <li><a href="http://lanyrd.com/2013/oedorubykaigi"><img alt="Lanyrd" src="/oedo03/lanyrd.png" /><span class="pc">Check us on </span>Lanyrd</a></li>
         <li><a href="http://asakusarb.doorkeeper.jp/group_contacts/new"><i class="icon-envelope"></i>Contact<span class="pc"> Form</span></a></li>
       </ul>
     </section>
diff --git a/oedo03/speakers/index.html b/oedo03/speakers/index.html
index bfa2f38..41ea7b7 100644
--- a/oedo03/speakers/index.html
+++ b/oedo03/speakers/index.html
@@ -74,7 +74,7 @@ <h2>開会・閉会のご挨拶</h2>
     <section id="contacts">
       <ul>
         <li><a href="http://twitter.com/OedoRubyKaigi"><i class="icon-twitter"></i><span class="pc">follow on </span>Twitter</a></li>
-        <li><a href="http://lanyrd.com/2013/oedorubykaigi"><img alt="Lanyrd" src="/oedo03/lanyrd-860448c9163ae64f4af783f20b49b837.png" /><span class="pc">Check us on </span>Lanyrd</a></li>
+        <li><a href="http://lanyrd.com/2013/oedorubykaigi"><img alt="Lanyrd" src="/oedo03/lanyrd.png" /><span class="pc">Check us on </span>Lanyrd</a></li>
         <li><a href="http://asakusarb.doorkeeper.jp/group_contacts/new"><i class="icon-envelope"></i>Contact<span class="pc"> Form</span></a></li>
       </ul>
     </section>
diff --git a/oedo03/u-4k0rCzjgs5J7oXnJcM_0kACGMtT-Dfq9PrNX0.woff2 b/oedo03/u-4k0rCzjgs5J7oXnJcM_0kACGMtT-Dfq9PrNX0.woff2
new file mode 100644
index 0000000..3a91b18
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diff --git a/oedo03/venue/index.html b/oedo03/venue/index.html
index c977b64..212b9cb 100644
--- a/oedo03/venue/index.html
+++ b/oedo03/venue/index.html
@@ -34,7 +34,7 @@ <h2>深川江戸資料館小劇場</h2>
     <section id="contacts">
       <ul>
         <li><a href="http://twitter.com/OedoRubyKaigi"><i class="icon-twitter"></i><span class="pc">follow on </span>Twitter</a></li>
-        <li><a href="http://lanyrd.com/2013/oedorubykaigi"><img alt="Lanyrd" src="/oedo03/lanyrd-860448c9163ae64f4af783f20b49b837.png" /><span class="pc">Check us on </span>Lanyrd</a></li>
+        <li><a href="http://lanyrd.com/2013/oedorubykaigi"><img alt="Lanyrd" src="/oedo03/lanyrd.png" /><span class="pc">Check us on </span>Lanyrd</a></li>
         <li><a href="http://asakusarb.doorkeeper.jp/group_contacts/new"><i class="icon-envelope"></i>Contact<span class="pc"> Form</span></a></li>
       </ul>
     </section>