The tagging and picture advice here is spot on.
While there are many picture editing options available, for simple resizing–in bulk–I use ‘Converseen‘.
Efficient tagging is a subtle art. Personally, I keep the number of tags fairly small but broadly inclusive. I’ve seen some blogs with a huge tag list. As a reader, I find that off-putting. It’s like being overwhelmed with details. Just my personal opinion, YMMV.
Self taught, persistently behind the times, never up to date. AKA ~ jeff
More verbosity: http://petiteguerre.blogspot.com/