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I'm all about champion and boss farming now that magic find affects your drops from bags. Anyone who has been salvaging for profits and luck should be jumping for joy. If you don't know how to make some luck from salvaging, I highly suggest you try my post on globs of ectoplasm. This method usually results in a loss of gold for quite a bit of luck. There are riskless methods on our forums that result in great profits, but less luck per hour.
Speaking of champion farming for bags, Queensdale is one of my favorite places for training. Just avoid the map chat fighting and you'll be good to go. Also pay attention for copper ore farming as that's free money while you're in the area. I believe that the popularity of this area is leading to the decrease in price of tiny supply bags. If at some point another area becomes very popular, expect the price of tiny supply bags to rise along with things like butter and jute scraps that come from those bags.
Here is a fantastic website for finding world boss timers. I discovered the link while listening to the recent MMO Reporter GW2 podcast. While going on my runs I'm not starting to listen to a host of podcasts (I run long distance), and MMO Reporter is one of the best.
One of the coolest features about the world boss timer site is that you can click to cross out a boss you've already killed.
For flipping strategies I added a new salvage method under my crazy thoughts. It's fast and easy money, perhaps 1 gold per set of buy orders getting fulfilled (about 20 orders of work) plus salvaging the items and listing them.
Finally, I have decided to get more publicity on the stockpiling of fine quality upgrade components prior to the jewelcrafting patch that is now imminent.
Use that search criteria and see which items are the closest to vendor value. Masterwork and Rare items are far closer to vendor price and are great deals as well for speculating on the jewelcrafting patch. Especially rare items which are usually only 1 or 2 copper above the vendor price! However, I believe that the fine quality items will see the largest profit from speculating (this is a change in my thinking recently).
I would highly recommend websites like Fast Guides for an insight into how the masses will level their jewelcrafting.
Here's an amazing write up by Draco on the forums about how to profit from investing (not just speculating but real investing).