[Queen Kong1]

ANy applications like Mighty Text for windows??

[webkrawler]

Google Voice App

[LockOnTech]

There is TextNow for windows 8.1, had an account ever since it is/was on iOS and android; it is also available for windows phone so you can get texts from both your windows phone and the computer.

[crazyhairboy]

MySMS works well.

[Nigel Alexander]

There are a number of different Application to Person (A2P) platforms online. A search for 'Bulk SMS' will show this. The decision you'll have to make is whether you want the one with the cheapest cost per SMS, with few features and less reliability. Or to pay a little more per SMS for smart features and higher successful send rates

[pkcable]

Some carriers have websites that let you sent texts also. I know Verizon does. :) www.vtext.com (only works for verizon customers)

Found a T-Mobile one.....

T-Mobile Text Message - T-Mobile SMS

[Queen Kong1]

MySMS works well.

Cheers trying this out now!!!

[Shawn Magm]

I use Google Voice. Also, Pinger has a web page in which one can text and send MMS.

[Hog8oy]

I use airdroid