Count every viewer and every article view for each blog entry, no matter how and where it is read: pixelstats tracks views of each blog post or page, not only on a single article page but also on each other page where the complete article is shown, i.e. the blog front page, category pages, search result page, archive pages and even RSS feeds.
Normal statistic tools count visitors and page impressions per actual page or URL, i.e. an article view is only counted, when your visitor clicks on the article’s permalink. This doesn’t make sense for blogs, because many of your visitors read articles on your blog’s front page or in full content RSS feeds. 
This plugin does not supply endless features to analyze your visitor’s behavior, it just gives you an accurate impression, which of your articles is viewed how many times.
Count every view just once: pixelstats can distinguish between recurring and non-recurring views per (anonymous) user to compute a unique or total view count per post/page.
Show off your stats: You can display you view count for each article on your blog.
Analyze your statistics: pixelstats offers comfortable analyzation tools, including graphs, dashboard widget etc.
Feature details:
<ul>
<li>Count viewers and article views for each post and article using tracking pixel</li>
<li>Tracking pixel is displayed automatically, no theme customization needed.</li>
<li>Define where views are tracked (front page, single page, archive pages, RSS feeds)</li>
<li>Define if logged in users should be tracked.</li>
<li>Aggregate statistic data to optimize performance (automatically per cron or manually in WordPress backend). (Not implemented yet)</li>
<li>Identify recurring users per pseudonym, stored in browser cookie.</li>
<li>View stats in WordPress backend. Top 10 (or Top n) articles, based on unique or total views, Bar chart for Top n articles (including unique and total views), line chart with daily totals of unique article views, total article views and unique viewers.</li>
<li>Dashboard widget with quick overview chart</li>
</ul>
See more at http://www.arrogant.de/pixelstats

pixelstats

Tracks views of all individual articles, even if viewed on front page, category pages and RSS feeds.

tombenner

Registration Statistics is a WordPress plugin that adds a tool in the WordPress admin section that allows administrators to choose a date range and see graphs and tables showing the number of registrations (i.e. new users) that occurred on each day and the number of cumulative registrations on that day (the total number of users who had registered on or before that day).
The graphs and tables are interactive; you can sort the tables by date or by count, and you can mouse over the graph to see the count at that point. You can also click on a point on a graph and choose to view a list of posts that were published on that day or during that month, which may allow you to see what posts might’ve caused a peak in registrations (and thus gauge what kinds of posts you can make in the future to spur on more registrations).
If you’d like to grab development releases, see what new features are being added, or browse the source code please visit the <a href="http://github.com/tombenner/registration-statistics" rel="nofollow ugc">GitHub repo</a>.

Registration Statistics

Displays graphs and tables showing counts of daily user registrations for a selected date range.

pixelstats vs Registration Statistics