Pingmeter

You might have a great website, shop or blog. so do your competitor. And they get your visitors when your site is down. It is stressful to have your website down and you get aware of it few hours after your visitors. Be the first one to notice.
Pingmeter ping your website constantly to ensure your website is working fine and take note of ping response speed. If your website timeout or go down, Pingmeter will double check it with our other servers across america, europe, russia and even australia, then notify you via SMS, email or even voice call on your phone.
Monitors can be associated with your website, so Pingmeter keep track of number of online visitors on your websites. and If a monitor go down, it notify you in call about number of your online visitors and record how many online visitors were on your website when this downtime happened.
Pingmeter monitor can scan HTTP, HTTPS, SSL Certificate validation, FTP, SMTP, POP3, IMAP, ICMP, MySQL and custom port pings. Monitors can be parents of a previous monitor, so for example you do not receive multiple alerts if your server go down and bring down HTTP, MySQL and FTP along with it.
Additionally, it can trigger pre-defined rescue actions to automatically recover your website such as modifying your CloudFlare DNS to your backup server or restarting your MySQL, Apache or other services by sending SSH command to your server.
Pingmeter give you a public (or private password protected) status page which you can link on your website so that your visitors can check your service status.
<h4>Read More:</h4>
http://www.pingmeter.com/

Pingmeter Uptime Monitoring

Pingmeter monitors and auto rescues your website during downtimes, so you can relax and focus on what's important. You can configure it to receiv …

Samuel Aguilera

IMPORTANT!!: At present Seesmic has blocked the API key for this plugin, you can <a href="http://ur1.es/djjSqf" rel="nofollow ugc">read more here</a>. So I have added support for using email notification, this is working for some users and not for others. Sorry but I can’t do more about this, so blame to Seesmic not me.
UPDATE (2011/08/27): Ping.fm support will be removed in a future version of this plugin.
Sends status updates to <a href="http://ping.fm" rel="nofollow ugc">Ping.fm</a> (this means you can update Twitter, Facebook, LinkedIn, Plurk, and many others at once) everytime you publish a post. Using many shorteners or even your own domain for shortened permalinks. So this way you can send status to many sites at once if you have a Ping.fm account or send only to Twitter if you prefer that.
If you find it useful, please consider to make a <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=8801680" rel="nofollow ugc">donation</a> to Shorten2Ping’s author (any amount will be appreciated).
<h4>Features</h4>
<ul>
<li>Send new posts notifications to Ping.fm service (account required).</li>
<li>Avoids to ping again when editing previously pinged post or even when editing an old post not pinged before.</li>
<li>Option to choose between bit.ly, tr.im, YOURLS, su.pr, is.gd, j.mp, wp.me, cli.gs or even you own domain for shortened permalinks.</li>
<li>Option to turn off notification or shortener service. Now you can use Shorten2Ping only for notification if your domain is already short enough for you, or use only to get shortened urls for your posts.</li>
<li>Stores created shortened permalink in a post meta field (used for template integration).</li>
<li>Using <code>rel="shortlink"</code> like in wp.me http://wp.me/sf2B5-shorten, creating auto-discovery link tag for the short link on single post page header.</li>
<li>You can use a template tag for showing visitors the short URL (using the same rel attribute as above for the shortened permalink).</li>
<li>Locale support. Now available in English, Spanish, Italian and Traditional Chinese (zh_TW). See translation section for more info.</li>
<li>WPMU compatible (you can have different settings for each blog).</li>
<li>Simple, fast, and useful 🙂</li>
</ul>
<h4>Requirements</h4>
<ul>
<li>PHP 5.x with CURL and JSON enabled (maybe works too in PHP4, but not tested and not supported by me).</li>
<li>Your hosting provider must allow the use of PHP mail() function if you choose ‘Ping.fm email’ notification method.</li>
<li>WordPress 2.7.x or higher (maybe would work on older WP, but not tested and not supported by me).</li>
<li>Required your own account for the third party services that you want to use.</li>
<li>Not tested and not supported on IIS servers.</li>
</ul>
<h4>Translations</h4>
If you want to make a translation for your language, use the shorten2ping.pot included and (if you want) send me the files to correo@samuelaguilera.com for including it into the plugin package, you’ll be credited, of course (NOTE: No sponsored translations allowed).
Credits for present translations:
<ul>
<li>Italian translation (it_IT) made by Riccardo Vianello AKA etms51</li>
<li>Traditional Chinese translation (zh_TW) made by Pseric.</li>
<li>French translation (fr_FR) made by Olivier.</li>
<li>Polish translation (pl_PL) made by Darek Skonieczka. </li>
<li>Spanish translation (es_ES) made by myself 🙂</li>
</ul>

Shorten2Ping

Sends status updates to Ping.fm everytime you publish a post, using your own domain, bit.ly, wp.me, su.pr, is.gd and others for shortened permalinks.

Pingmeter Uptime Monitoring vs Shorten2Ping