is templates used in designing greeting cards if so is there any good template websites?

Online websites with wedding templates to send invitation?

Kindly tell me some good websites where i can choose some template and add pictures to make an online wedding invitation, i have seen a few but dont remeber where people can congratulate you too by posting comments etc.
In addition to this if someone can tell where to choose some nice n decent designs for [...]

Create Your Own Christmas Cards Samples Using Online Templates

 

The most effective way for sending greetings to your family, friends, customer and colleagues alike on Occasion of Christmas is via Christmas Card. You can convey your emotions and feelings to all your loved ones in your very own way, giving final touch of elegance to the celebration of special occasions in their life.

 

We give [...]