galaxyAbstractor

The firefox addon https://addons.mozilla.org/en-US/firefox/addon/firecoin/ lets users easily donate BitCoins to site owners. It gets your BitCoin address from a metatag named “bitcoin”. It also allows the site owners to provide a message and a URL to a thanks page.
This plugin makes it easy for you to add these tags to your headers.
Please note that this plugin will promote the Firefox addon in a HTML comment in the header, which is only visible if a user would inspect the HTML code. It wont show the link anywhere else.

FireCoin

Easily lets you put your bitcoin address, a message and a thanks URL in the header section, so that firefox users using the FireCoin addon can donate  …

wpecommerce

The Recurring Donations plugin allows you to accept recurring donations via PayPal from your website.
It has a user-friendly and simple shortcode that lets you place a donate button anywhere on your WordPress site. You can add the subscription donation widget to your sidebar, posts, pages etc.
The recurring donations widget this plugin creates is nice looking and user-friendly.
Your users will be able to select a subscription or recurring donation amount and pay you monthly.
This plugin allows you to accept one time donations also. So if some users prefer to pay a one-off donation, they can click on the “Donate Once” tab and make a one-time donation payment.
<ul>
<li>Quick installation and setup.</li>
<li>Easily take recurring donations via PayPal. Accept ongoing subscription donation on your site.</li>
<li>The ultimate plugin to create PayPal recurring donations buttons.</li>
<li>Create the donation buttons on the fly and embed them anywhere on your site using a shortcode.</li>
<li>Ability to add multiple recurring donation widgets on your site for different causes. Accept subscription donation for various purposes.</li>
<li>Allow your users to specify a donation amount that they wish to pay. </li>
<li>Ability to accept recurring payment in any PayPal supported currency.</li>
<li>Send your users to a custom thank you page after the payment.</li>
<li>Option to send your users to a custom cancel return page from PayPal.</li>
</ul>
The setup is very simple and easy. Once you have installed the plugin, all you need to do is enter your PayPal Email address in the plugin settings and your site will be ready to accept recurring donations from users.
<h4>Shortcode</h4>
Insert the following shortcode into a page or post to create a donation button.
<pre><code>[dntplgn recurring_amt1="25" recurring_amt2="50" recurring_amt3="100" item_name="For the victims of XX"]
</code></pre>
Here, am1, am2 and am3 are the donation options.
<h4>Widget</h4>
In order to place a widget on the sidebar, go to “Appearance -> Widgets” and add a new text widget. Now add the following shortcode to the text widget.
<pre><code>[dntplgn]
</code></pre>
After adding the widget to the sidebar, you can enter a title for the widget and some descriptive text that will appear above the button. You can also customize the shortcode parameters to override the default options.
For detailed instructions please check the <a href="https://wp-ecommerce.net/wordpress-recurring-donation-plugin" rel="nofollow ugc">Recurring Donation Plugin</a> documentation page.

Recurring PayPal Donations

Paypal changes something in how they process form submissions about two months ago.  I was working on a similar plugin called Custom Donations.  I was experiencing a problem where Paypal would say that the link was bad.  I was looking to see how this plugin handled that problem and found that it was also broken.

Broken after Paypal Changes

Accept PayPal subscription or recurring donation payment from your WordPress site easily.

FireCoin vs Recurring PayPal Donations