diff --git a/authors.html b/authors.html
index feea09c1..686c3905 100644
--- a/authors.html
+++ b/authors.html
@@ -8,6 +8,7 @@
 <meta name="description" content="A backup program for disk arrays. It stores parity information of your data and it recovers from up to six disk failures" />
 <meta name="keywords" content="snapraid snapshot raid backup disk array redundancy parity" />
 <meta name="author" content="Andrea Mazzoleni" />
+<meta name="viewport" content="width=device-width, initial-scale=1.0" />
 <script type="text/javascript">
 
   var _gaq = _gaq || [];
@@ -65,7 +66,6 @@ You can contact me by email using the address
 <br/>
 <a href="http://sourceforge.net/p/snapraid/donate/"><img src="paypal.png"/></a>
 
-<!-- <a href="https://coinbase.com/checkouts/ab4deed1c73dca450ff7ea4b10f4f7ce"><img src="bitcoin.png"/></a> -->
 <a href="https://coinkite.com/u/amadvance/"><img src="bitcoin.png"/></a>
 </div>
 
diff --git a/compare.html b/compare.html
index 59e3b973..e7045524 100644
--- a/compare.html
+++ b/compare.html
@@ -8,6 +8,7 @@
 <meta name="description" content="A backup program for disk arrays. It stores parity information of your data and it recovers from up to six disk failures" />
 <meta name="keywords" content="snapraid snapshot raid backup disk array redundancy parity" />
 <meta name="author" content="Andrea Mazzoleni" />
+<meta name="viewport" content="width=device-width, initial-scale=1.0" />
 <script type="text/javascript">
 
   var _gaq = _gaq || [];
@@ -247,7 +248,6 @@ If you think that some information reported is incorrect or simply unfair, pleas
 <br/>
 <a href="http://sourceforge.net/p/snapraid/donate/"><img src="paypal.png"/></a>
 
-<!-- <a href="https://coinbase.com/checkouts/ab4deed1c73dca450ff7ea4b10f4f7ce"><img src="bitcoin.png"/></a> -->
 <a href="https://coinkite.com/u/amadvance/"><img src="bitcoin.png"/></a>
 </div>
 
diff --git a/design.html b/design.html
index c9426f3e..3f331696 100644
--- a/design.html
+++ b/design.html
@@ -8,6 +8,7 @@
 <meta name="description" content="A backup program for disk arrays. It stores parity information of your data and it recovers from up to six disk failures" />
 <meta name="keywords" content="snapraid snapshot raid backup disk array redundancy parity" />
 <meta name="author" content="Andrea Mazzoleni" />
+<meta name="viewport" content="width=device-width, initial-scale=1.0" />
 <script type="text/javascript">
 
   var _gaq = _gaq || [];
@@ -93,7 +94,6 @@ As internal data base it's used the <a href="http://www.tommyds.it/">TommyDS</a>
 <br/>
 <a href="http://sourceforge.net/p/snapraid/donate/"><img src="paypal.png"/></a>
 
-<!-- <a href="https://coinbase.com/checkouts/ab4deed1c73dca450ff7ea4b10f4f7ce"><img src="bitcoin.png"/></a> -->
 <a href="https://coinkite.com/u/amadvance/"><img src="bitcoin.png"/></a>
 </div>
 
diff --git a/download.html b/download.html
index e8da37dc..055e4eaf 100644
--- a/download.html
+++ b/download.html
@@ -8,6 +8,7 @@
 <meta name="description" content="A backup program for disk arrays. It stores parity information of your data and it recovers from up to six disk failures" />
 <meta name="keywords" content="snapraid snapshot raid backup disk array redundancy parity" />
 <meta name="author" content="Andrea Mazzoleni" />
+<meta name="viewport" content="width=device-width, initial-scale=1.0" />
 <script type="text/javascript">
 
   var _gaq = _gaq || [];
@@ -96,7 +97,6 @@ Donations are spent on stuffs related to SnapRAID development like to buy new ha
 <br/>
 <a href="http://sourceforge.net/p/snapraid/donate/"><img src="paypal.png"/></a>
 
-<!-- <a href="https://coinbase.com/checkouts/ab4deed1c73dca450ff7ea4b10f4f7ce"><img src="bitcoin.png"/></a> -->
 <a href="https://coinkite.com/u/amadvance/"><img src="bitcoin.png"/></a>
 </div>
 
diff --git a/faq.html b/faq.html
index 771633a6..0380b67a 100644
--- a/faq.html
+++ b/faq.html
@@ -8,6 +8,7 @@
 <meta name="description" content="A backup program for disk arrays. It stores parity information of your data and it recovers from up to six disk failures" />
 <meta name="keywords" content="snapraid snapshot raid backup disk array redundancy parity" />
 <meta name="author" content="Andrea Mazzoleni" />
+<meta name="viewport" content="width=device-width, initial-scale=1.0" />
 <script type="text/javascript">
 
   var _gaq = _gaq || [];
@@ -1100,7 +1101,6 @@ The '-T largefile4' and '-m 0' options should give more space available for the
 <br/>
 <a href="http://sourceforge.net/p/snapraid/donate/"><img src="paypal.png"/></a>
 
-<!-- <a href="https://coinbase.com/checkouts/ab4deed1c73dca450ff7ea4b10f4f7ce"><img src="bitcoin.png"/></a> -->
 <a href="https://coinkite.com/u/amadvance/"><img src="bitcoin.png"/></a>
 </div>
 
diff --git a/index.html b/index.html
index c8c83ba1..94b70102 100644
--- a/index.html
+++ b/index.html
@@ -8,6 +8,7 @@
 <meta name="description" content="A backup program for disk arrays. It stores parity information of your data and it recovers from up to six disk failures" />
 <meta name="keywords" content="snapraid snapshot raid backup disk array redundancy parity" />
 <meta name="author" content="Andrea Mazzoleni" />
+<meta name="viewport" content="width=device-width, initial-scale=1.0" />
 <script type="text/javascript">
 
   var _gaq = _gaq || [];
@@ -98,7 +99,6 @@ Now go to <a href="download.html">Download</a>.
 <br/>
 <a href="http://sourceforge.net/p/snapraid/donate/"><img src="paypal.png"/></a>
 
-<!-- <a href="https://coinbase.com/checkouts/ab4deed1c73dca450ff7ea4b10f4f7ce"><img src="bitcoin.png"/></a> -->
 <a href="https://coinkite.com/u/amadvance/"><img src="bitcoin.png"/></a>
 </div>
 
diff --git a/manual.html b/manual.html
index 43ba4151..69e1b574 100644
--- a/manual.html
+++ b/manual.html
@@ -8,6 +8,7 @@
 <meta name="description" content="A backup program for disk arrays. It stores parity information of your data and it recovers from up to six disk failures" />
 <meta name="keywords" content="snapraid snapshot raid backup disk array redundancy parity" />
 <meta name="author" content="Andrea Mazzoleni" />
+<meta name="viewport" content="width=device-width, initial-scale=1.0" />
 <script type="text/javascript">
 
   var _gaq = _gaq || [];
@@ -1634,7 +1635,6 @@ in the UTF-8 format.
 <br/>
 <a href="http://sourceforge.net/p/snapraid/donate/"><img src="paypal.png"/></a>
 
-<!-- <a href="https://coinbase.com/checkouts/ab4deed1c73dca450ff7ea4b10f4f7ce"><img src="bitcoin.png"/></a> -->
 <a href="https://coinkite.com/u/amadvance/"><img src="bitcoin.png"/></a>
 </div>