Soon, we might be able to figure out the emotional mindset of a blogger or the creator of online comments, if a group of companies developing these new kind of tools succeed.
These "sentiment analysis" tools form a wider part of computer science attempting to train computers to understand the feelings expressed in written content just like humans.
And the commercial applications of such technology can already be seen in some companies whose businesses are affected by customer blogs as much as advertising campaigns, reports New Scientist.
Firms such as Seattle-based Sentimine are using the " sentiment-aware software that can gauge emotional responses in text.
The application is also expected to help in controlling human communications as well as digesting their output, for example, Adaptive Semantics' JuLiA is a software agent that can recognise abusive comments based on a learning algorithm.
"She" can take down or quarantine comments bending over the predetermined abuse threshold.
And presently, further options are being examined to enhance JuLiA's comprehension abilities - for example, to determine if the content is intelligent, sarcastic, or political in tone.
Similarly, another firm, Lexalytics, uses sentiment analysis to sway what people say before they realise it is too late.
The sentiment-analysis tools, presently pocketed by big brand corporations, are expected to become cheaper, and perhaps even free.