Reuven Karasik

This plugin alows you to display a message to all your visitors insode a fancy lightbox. 
features:
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Easy interface and simple settings pages
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All features support any type of client-side code: HTML, Javascript, embed of video or enything you want
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Display your message to all visitors in a pop-up lightbox. Automaticly put there a like button, and you will get lots of likes every week
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Your Lightbox

Display lightbox with your message or like button to all visitors

Budiony Damyanov

Counts the visits from web spiders, crawlers and bots in your blog, with ability to get the blog rankings from Google or Alexa. 
Also can count any other visit, the plug-in is looking for patterns in user-agent string, which pattern can be customized. 
You can block or unblock crawler, spider (or any other item), by IP address and identifier via .htaccess file. 
As additional information you can get your blog rankings from Google PageRank or Alexa.

bodi0`s Bots visits counter

Counts the visits from web spiders, crawlers and bots in your blog, with ability to get the blog rankings.

Your Lightbox vs bodi0`s Bots visits counter