Index: wp-includes/functions.php
===================================================================
--- wp-includes/functions.php	(revision 13536)
+++ wp-includes/functions.php	(working copy)
@@ -3998,13 +3998,19 @@
  * @param string $file Path to the file
  * @param bool $markup If the returned data should have HTML markup applied
  * @param string $context If specified adds filter hook "extra_<$context>_headers"
+ * @param int $max_bytes Maximum bytes to read in file. Defaults to 8192 = 8kB
  */
-function get_file_data( $file, $default_headers, $context = '' ) {
+function get_file_data( $file, $default_headers, $context = '', $max_bytes = 8192 ) {
+	$max_bytes = apply_filters('get_max_' . $context . '_file_bytes', $max_bytes);
+	
+	if ( !$max_bytes )
+		return $default_headers;
+
 	// We don't need to write to the file, so just open for reading.
 	$fp = fopen( $file, 'r' );
 
-	// Pull only the first 8kiB of the file in.
-	$file_data = fread( $fp, 8192 );
+	// Pull only the beginning start of the file.
+	$file_data = fread( $fp, $max_bytes );
 
 	// PHP will close file handle, but we are good citizens.
 	fclose( $fp );
Index: wp-admin/includes/plugin.php
===================================================================
--- wp-admin/includes/plugin.php	(revision 13536)
+++ wp-admin/includes/plugin.php	(working copy)
@@ -42,6 +42,7 @@
  *		from the author.
  *		'Author' - The author's name
  *		'AuthorURI' - The authors web site address.
+ *		'DonateURI' - Web address to donate to the plugin author. 
  *		'Version' - The plugin version number.
  *		'PluginURI' - Plugin web site address.
  *		'TextDomain' - Plugin's text domain for localization.
@@ -78,6 +79,7 @@
 		'Description' => 'Description',
 		'Author' => 'Author',
 		'AuthorURI' => 'Author URI',
+		'DonateURI' => 'Donate URI',
 		'TextDomain' => 'Text Domain',
 		'DomainPath' => 'Domain Path',
 		'Network' => 'Network',
@@ -98,6 +100,20 @@
 	//For backward compatibility by default Title is the same as Name.
 	$plugin_data['Title'] = $plugin_data['Name'];
 
+	if ( empty($plugin_data['DonateURI']) ) {
+		// Read info in from readme.txt
+		$readme_headers = array(
+			'DonateURI' => '',
+		);
+
+		$readme_file = plugin_dir_path( $plugin_file ) . 'readme.txt';
+		if ( file_exists( $readme_file ) ) {
+			$readme_data = get_file_data( $readme_file, $readme_headers, 'readme', 1024 );
+			unset($plugin_data['DonateURI']);
+			$plugin_data = array_merge( $readme_data, $plugin_data );
+		}
+	}
+
 	if ( $markup || $translate )
 		$plugin_data = _get_plugin_data_markup_translate( $plugin_file, $plugin_data, $markup, $translate );
 
@@ -113,10 +129,17 @@
 		else
 			load_plugin_textdomain($plugin_data['TextDomain'], false, dirname($plugin_file));
 
-		foreach ( array('Name', 'PluginURI', 'Description', 'Author', 'AuthorURI', 'Version') as $field )
+		foreach ( array('Name', 'PluginURI', 'Description', 'Author', 'AuthorURI', 'Version', 'DonateURI') as $field )
 			$plugin_data[ $field ] = translate($plugin_data[ $field ], $plugin_data['TextDomain']);
 	}
 
+	// Sanitize urls
+	foreach ( array('PluginURI', 'AuthorURI', 'DonateURI') as $field ) {
+		if ( !empty($plugin_data[$field]) )
+			$plugin_data[$field] = esc_url($plugin_data[$field]);
+	}
+		
+
 	//Apply Markup
 	if ( $markup ) {
 		if ( ! empty($plugin_data['PluginURI']) && ! empty($plugin_data['Name']) )
Index: wp-admin/plugins.php
===================================================================
--- wp-admin/plugins.php	(revision 13536)
+++ wp-admin/plugins.php	(working copy)
@@ -620,7 +620,9 @@
 		}
 		if ( ! empty($plugin_data['PluginURI']) )
 			$plugin_meta[] = '<a href="' . $plugin_data['PluginURI'] . '" title="' . __( 'Visit plugin site' ) . '">' . __('Visit plugin site') . '</a>';
-
+		if ( ! empty($plugin_data['DonateURI']) ) 
+			$plugin_meta[] = '<a href="' . $plugin_data['DonateURI'] . '" title="' . __( 'Donate' ) . '">' . __('Donate') . '</a>'; 
+			
 		$plugin_meta = apply_filters('plugin_row_meta', $plugin_meta, $plugin_file, $plugin_data, $context);
 		echo implode(' | ', $plugin_meta);
 		echo "</td>