For successful blogging it is necessary to measure performance of the blog at various steps. Manual procedure to analyze performance is complex and time extensive. Here is collection of Word Press plugins which help you to analyze performance of your blog and provide you greater amount of data relegated to your blog.

1. FirStats:
The FireStats is a web statistics system. It is free for non-commercial usage and costs 25$ per installation for commercial usage.
This plugin features- protect the privacy of your users, real time statistics, recent referrers, search engine keywords, recent popular pages, browser and OS trees, IP to country, that is, know where your visitors are browsing from, multiple users support with the ability to have a control on which sites each user can access, designed to work on all browsers, compacts old data to improve performance and reduces the database size etc.

2. GoStats Web Counter:
GoStats offers a free hit counter that is easy to use. It keeps track of your website stats for your blog. Once you start with it, you can view your stats. This can easily be done by accessing your GoStats account and clicking on “my sites” and “stats”. You can also receive weekly emails from GoStats about your hits.

3. Lightstats:
The Lightstats shows information in images. It also generates a few bar and pie graph images showing the statistics about the posts, comments and categories. It is compatible with PHP 4 / PHP 5 and WordPress 2. or greater.

4. Live:
The Live can track every single activity that would take place on your blog. You can see and scan via your blog activity in real time. This plugin shows who your visitors are, where they come from, which pages they are browsing through etc. There is also a graph that tells you about the traffic your blog is getting over a span of time.

5. Social Traffic Monitor:
Social Traffic Monitor is a plugin that monitors your blog traffic for the activities that come from the social news or bookmarking sites. When there is a click on a link to your blog on one of the major bookmarking sites such as Digg, Netscape, Reddit, StumbleUpon etc, this plugin starts logging on the visits to that page. This data can then be shown in the form of a graph of visitors per hour.

6. Ultimate Google Analytics:
This plugin adds the Google Analytics JavaScript to every page on your web blog without any changes to your template. It can also add tracking to the outbound links, downloads from your own site and mailto: links. It is highly configurable. It basically starts with a simple configuration screen and hides the advanced configuration in an Advanced Configuration mode. The simple configuration screen will be enough but if you are interested in tweaking and tuning this plugin, use the advanced settings.

7. WP-SlimStat:
Wp-SlimStat helps you in seeing the detailed stats of your wordpress blog. It also filters the details and stats using the filter form inside the Details panel. It can also import wp-shortstat tables and data and is fully localizable. It has improved browser and platform detection. It displays the hits, visitors and unique IPs too.

8. Open Web Analytics:
The Open Web Analytics (OWA) framework provides a set of PHP and HTTP APIs that the application developers can use for integrating the web analytics into any application. The Framework also has built-in support for some popular web applications such as WordPress and MediaWiki.

9. Feed Statistics:
The Feed Statistics is a plugin meant for the WordPress blogs that tracks the statistics for your RSS/Atom feeds. This includes the number of subscribers, which feed readers they use, which posts they view and which links they click on.

10. FeedBurner StandardStats:
The FeedBurner StandardStats WordPress plugin is very easy to install compared to the StandardStats from FeedBurner. The FB StandardStats makes installing the FeedBurner’s stats code very simple. There are no files to edit. All you need to do is, put in your user ID. The plugin will take care of the rest. This plugin can also be used to show the FeedFlare links on each blog post.

11. DownloadCounter:
The DownloadCounter counts the number of times a file has been downloaded and some misc statistics. It automatically generates the link and the code that you need to put in your website. Managing your files is possible and statistics can be viewed at the administration page.

Similar to this, there is also an ImageCounter that generates an image with the help of another one that the user selected to be used as the background. In the administration panel, the counter can be fully customized. That is, the font, font size, text position, background image, font angle, font color etc. It supports the GD and TTF fonts based on your server’s configuration.

12. Backlinks inbound links counter:
This plugin can display the number of inbound links to a blog. It would count all the links. The backlinks draws a beautiful graph that displays how your number of inbound links would develop over time using the MSN Search API along with the nuSOAP in order to count the backlinks.