Q:

Can Blender be used online for viewing and editing my 3D model? 

I want to use Blender for a sketch-up 3D image, but I want my 3D image online, on my webpage.  I also want to be able to edit it online as well... Are there any available option for doing this? 
Hope you all have something related to this my problem that can help me out. 

A:

For displaying a 3d model online checkout sketchfab or p3d
I don't expect much in the way of mesh editing online. 
As you tagged your question as 3d-printing shapewright may be close to what you want - it is designed for customised 3d printing.  The site uses an automated method that can join several pre-built models together to get a final model.  I'd expect Dolf to be helpful if you wanted to make use of his scripts.