I am an experienced amateur photographer. I am very familiar with my digital SLR. I have no immediate plans for these photos other than to post them to blogs. One of my personal goals is to sell a second photograph in the next three years, so if I can make a sale-able image, that's a bonus.
If you're really mainly going to post them to the web, then even an older 2 or 3 megapixel point and shoot would give you good enough image quality unless you want to crop. But either of the 6-megapixel models you're considering could produce a saleable image (unless RAW files are required)
As for familiarity, the point and shoot models are mostly no-brainers, it doesn't take long to become familiar with them. It's just when you get to the advanced features (which most people never use) that things get complicated. I look for cameras that have dedicated buttons rather than on-screen menus, but menus are a necessary evil and everyone gets lost using them. The main thing I miss in using these little point and shoot cameras is the inability to choose aperture priority or shutter priority. Having that feature is essential to serious photography, but I've managed to take lots of good photos without it. I prefer cameras that let you control everything (even focus) manually, but the convenience of point and shoot cannot be beat and I've taken some remarkably good photos with those little units.
The Canon image quality is supposed to be better than the Panasonic, but in all other respects the latter is reportedly the better camera.
For me, image quality is paramount. I do like the controls on my Panasonic/Leica better than those on the Canon, and the build quality is great on everything except the battery compartment latch, which feels flimsy. But I've been really disappointed with the Panasonic/Leica because I was expecting better image quality and it has certainly not delivered in that department. Or rather, I should say, it's fine but nothing exceptional. I assumed when I upgraded from a 2.1 megapixel Canon that I bought in 2002 to a 6 megapixel model in 2006 that there'd be a noticeable improvement. I was wrong!