Pramana company is offering a bot-spotter service that suppose to be some kind of Captcha alternative.
When it comes to your website security, the bot spotter keeps two eyes open in aim to detect bots that are remotely controlled by spammers.

There are 2 services of bot detecting by Pramana:
1. BotAlert – A free service that can report suspected bot traffic on a site.
2. BotBlock – A paid service  that identify bots and block their actions.
The cost of using the Bot Block service ranges from $19.99 to $299 per month.

The full article can be read here, on tech world news.
Too bad that Pramana CEO didn’t say anything about how they’re going to deal with decent bots like those of search engines…