Cool SMS Sites (top 10 )

SMS Everywhere
Send text messages (SMS) to cell phones

There is NO LIMIT to how many messages you send once you register, apparently. Otherwise, you can send 2 messages more...

O2
Send free SMS by registering with O2 (even if you're not an O2 customer). Just register your UK details. You get 10 free sms in total and can send an sms of up to 444 characters, but this will use up 3 of your free sms in one go.

You can top up your text messages by purchasing 30 sms for £1.50. O2 also offers free wallpapers and free more...

TextMeFree.com & Fonetastic
Send free text messages using TextMeFree.com's free uk sms service (operated by Fonetastic). 10 free sms credits per day, and address book. United Kingdom (UK) mobile phones only. Winner of the WebUser Bronze Award for best free sms sites (UK).

Service is free and more or less reliable. Fonetastic free sms has been around for many years. Watch out for more...

sms.BizHat.com
Send Free SMS to Indian mobile phones

Not all networks included, apparently more...

SeaSMS
Send free sms and free mms worldwide at Seasms, registration not required. SeaSMS offers UNLIMITED quota for its users. As far as the permitted number of characters is concerned, SeaSMS automatically splits them into multiple number of messages to fit the norms set by the destination operator.

This website also offers WAP Upload/Download facility in order to faciliate its users with Free Data Tansfer and Free MMS more...