VozMe is a free web tool,  which allows you to convert text into speech

To convert the text to voice, you just have to type your text into a box provided on VozMe, and it will convert the text into an mp3 file, which you can download and use enywhere. The quality of this audio file is pretty good and you can also use it your websites, blogs etc. or can have fun with. iGoogle users, can also integrate Vozme into their homepage.

VozMe also makes available java scripts and codes for the bloggers and webmasters to integrate into their blogs and websites, which allow users and visitors to listen the text. One more thing, the text to audio conversion facility is also available for Spanish, besides the default English.

Nice web tool.