Some of the best ways to get the most out of MFP!

This link is a great place to start...

http://www.myfitnesspal.com/topics/show/1080242-a-guide-to-get-you-started-on-your-path-to-sexypants

This one is self explanatory...

http://www.myfitnesspal.com/topics/show/1069278-acronyms-and-terms-for-new-mfp-members-v-6

Highly recommend joining this group (like right now) to cut through the pseudoscience...

http://www.myfitnesspal.com/groups/home/10118-eat-train-progress

Read the links, no I mean really read them!...

http://www.myfitnesspal.com/topics/show/833026-important-posts-to-read

Other than that use the search function for groups if you prescribe to a certain philosophy/belief system...

...but be willing to step outside of your comfort zone as many users who prescribe to a certain way of doing things choose to ignore advice/facts that may refute something they may have believed for sometime that may have been dis-proven or an easier, better method may have been discovered since they developed their initial beliefs.

That is it! Sorry about the grammar I am ill at the moment.