Great idea!

you have to look at the resolution of the pictures...

now if you make the pictures [with your Nikon E4300 ] the picture is stored at 300dpi. That is great if you plan on printing it out or retouching or whatever...

Now, for the internet, a resolution of 72 dpi is okay, as [most] computer monitors only display at 72 dpi.

So, if you have a picture of

2048 x 1536 at 300 dpi = 1.631 kb [1.6MB]

2048 x 1536 at 72 dpi = 745 kb [jpg with quality at 75]

see the examples:

++++++ 1 ++++++

2048x1536 @ 300 dpi [original from your site]

++++++ 2 ++++++

2048x1536 @ 72 dpi [quality 75]