If you want to know how much hits your posts are receiving on a daily basis, then the Daily Top 10 Posts plugin is for you. What it does is track the hits of each blog post for the current day and cumulatively at the same time. You may also display sidebar widgets containing a list of the most popular posts for the day and most popular posts overall.

Plugin Name: Daily Top 10 Posts
Description: Tracks the number of pageviews per blog post for the current day and cumulatively with options to display sidebar widgets for both.
Author: Andrew dela Serna
Version: 0.7
Notice: Compatible with Wordpress 2.7-2.8.
Disclaimer: This is a standalone plugin. If you have been using the Top 10 plugin, please be advised that using the Daily Top 10 Posts plugin means your pageviews will start from zilch.

INSTALLATION
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1A. Wordpress 2.7-2.8 users, download the plugin from http://www.alleba.com/blog/wp-downloads/dailytop10.zip
1B. Wordpress 2.6 and below users, download the plugin from http://www.alleba.com/blog/wp-downloads/dailytop10.zip
2. Extract and upload dailytop10.php to 'yourserver.com/wp-content/plugins/'
3. Login to your Wordpress admin panel and browse to the Plugins section.
4. Activate The Daily Top 10 Posts plugin.

INSTRUCTIONS
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1. Go to Admin Panel > Design > Theme Editor and click on Single Post (single.php).

#Find this line:

<?php the_time('F jS, Y') ?> //date

#Right after it, insert this line:
<br /><?php if (function_exists('todays_overall_count')) { todays_overall_count($post->ID, 'Visited', 'times', 'so far today', '0', 'show'); } ?>

#The line will display something like “Visited 300 times, 25 so far today” while viewing an individual post.
#You may edit the wording to suit your preference.
#If you wish to leave a word/phrase empty, use two quotes '' instead of just leaving it completely blank.
#Insert only one instance of this line to avoid double tracking.
#Change '0' to '1' if you wish to track unique sessions.
#Change 'show' to 'noshow' if you donot wish to display the post count information.

2. To display the number of views per post on the main index page, click on Main Index Template (index.php) in the Theme Editor panel.

#Find this line:

<?php the_time('F jS, Y') ?>

#Right after it, insert this line:

<br /><?php if (function_exists('todays_overall_main')) { todays_overall_main($post->ID, 'Viewed', 'times', 'so far today'); } ?>

#The line will display something like “Visited 300 times, 25 so far today” under each post heading
#while browsing your main page.
#You may edit the wording to suit your preference.
#If you wish to leave a word/phrase empty, use two quotes '' instead of just leaving it completely blank.

3. To add the sidebar widget, you may add it directly in the widgets panel of your theme (Design > Widgets). If your theme is not widget-ready, click on sidebar.php in the Theme Editor panel and do the following:

#Add the following code:

<h3>Top Posts for Today</h3>
<?php if (function_exists('todays_count_widget')) { todays_count_widget('views', 'ul'); }?>

#You may edit the word “views” to your liking (e.g. visits, pageviews or leave it empty '').
#The list format defaults to an unordered list (ul). If you would like an ordered list, change it to 'ol'.

4. To add the sidebar widget to show your most popular posts overall, you may add it directly in the widgets panel of your theme (Design > Widgets). If your theme is not widget-ready, click on sidebar.php in the Theme Editor panel and do the following:
#Add the following code:

<h3>Overall Top Posts</h3>
<?php if (function_exists('todays_overall_count_widget')) { todays_overall_count_widget('views', 'ul'); } ?>

#You may edit the word “views” to your liking (e.g. visits, pageviews or leave it empty '').
#The list format defaults to an unordered list (ul). If you would like an ordered list, change it to 'ol'.

Update: Now has the ability to track unique hits based on sessions. See instruction #1 for implementation.

0.2 Update: A serious flaw has been found that prevents the daily count from incrementing. Please download the latest version to correct this.

0.3 Update: Numerous bugs corrected. For more, read this post.

0.4 Update: Numerous bugs corrected. Added support for widgets. For more, read this post.

0.5 Update: Bugs in Wordpress 2.7 corrected. Check this post.

0.6 Update: CSS bugs in Wordpress 2.7 corrected. Check this post.

0.7 Update: Ability to exclude posts added. Tested to work on Wordpress 2.8 Check this post.

As always, I am open to your comments and suggestions. I hope you like this one! Thanks!