Franz Josef Kaiser

Ralf Albert

AvatarPlus allows users to use the avatar from a social service of their choice (supports: Google+, Twitter and Facebook) as their comments avatar instead of the default from the Gravatar service or your WordPress installation. More and more users avoid typing in their mail address and instead just want to hand out their social profile URL. AvatarPlus adds this feature to WordPress comments, thus making the mail address field not required anymore for displaying an avatar image.
Flexibility for a maximum number of use cases: The plugin allows to either add a new field to the comments section or just use the homepage URL field for the social profile URL. AvatarPlus also recognizes redirects and is able to work with most URL-shortening services like bit.ly or goo.gl.
Environment friendly: AvatarPlus cares about your resources and uses a simple caching mechanism to save the avatar links directly and therefore reducing the number of HTTP requests to a minimum and serving your sites comments section as fast as possible.
Maximum code quality: Every single line of code is written with WordPress “Best Practice” in mind to serve you only the highest quality product.
<h3>Arbitrary section</h3>
AvatarPlus uses a simple caching mechanism. In some countries, webmaster have to declare if the webpage stores personal data about the user. AvatarPlus stores the following data:
<ul>
<li>The URL which the users entered into the comment form.</li>
<li>The profile URL to their social network profile, if the URL (which the user entered) redirects to their respective profile URL.</li>
<li>
The URL of the profile image they use on the social network.
</li>
<li>
This data will be stored until an expiration is set in the backend/administration interface.
</li>
<li>The expiration can divert (depending on your settings).</li>
<li>The check whether the plugin needs to delete. any data will be run once a day. For further details see the internal mechanisms of the plugin in its source code.</li>
</ul>

AvatarPlus

AvatarPlus allows users to use their profile image from Google+, Facebook or Twitter as avatar for their comment(s). AvatarPlus requires PHP v5.3+

LOO2K

这是一个关于 Gravatar Cache 的重要更新，之前（2010.10.15） Gravatar 由于一些众所未知的原因不能访问，所以当初制作了一个 Gravatar 头像的本地缓存插件，但是由于当时编写的比较匆忙，遗留下了一些问题，包括但不限于：无法使用默认图片、无法缓存不同大小的头像等；
最近一段时间（2011.08.02），Gravatar 再次无法访问，所以重新写了一个插件 Gravatar China for WordPress，并解决的之前存在的所有已知的问题；
Gravatar China for WordPress 特性
<pre><code>* Gravatar 头像防墙补丁：替换 Gravatar 头像能正常访问的地址；
* Gravatar 本地缓存：对特殊的网络环境下给头像进行本地缓存；
* 自定义设置缓存过期时间；
* 国内、国外主机用户通用；
* 完美兼容 WordPress；
</code></pre>
Gravatar China for WordPress 说明
<ul>
<li>
本插件针对中国大陆的网络环境制作；
</li>
<li>
一般情况下，你可以在 Gravatar 头像不能正常访问的时候启用本插件的 “Gravatar 补丁”，它能帮助你的 WordPress 访客连接到正常的头像地址上；
</li>
<li>
通常，根据网页前端的性能优化来说，不推荐用户启用 “Gravatar 本地缓存”，因为它对 WordPress 的性能有一定的影响，当然这个影响仅限于生成本地缓存的时候；（启用缓存前请确认你的 WordPress 目录 wp-content/plugins/gravatar-cn/cache 可写）
</li>
</ul>

Gravatar China

Here is a short description of the plugin.  This should be no more than 150 characters.  No markup here.

AvatarPlus vs Gravatar China