Hi Joe. There's certainly many aspects to how you want to go about generating and gathering back links, but by in large you are seeing the basics. Raven Tools plugs into Basecamp which can be handy and tries to include a broader cross section of online marketing data to further help plan your campaigns and website marketing. Still, Open Site Explorer gives you all the raw data you need in managing your backlinks and really it's up to you how you want to approach it. You'll likely come across some sites that appear spammy but a competitor has a link there. You'll have to decide whether or not you want to try and acquire one there as well. Other times, you'll get widget, content, and vertical creation ideas from viewing where others--or your own site--have successfully gotten backlinks.
If you're putting a conscious effort towards acquiring genuine links you will have very little worry about appearing unnatural in Google, and emphasizing a broad source of backlinks will expose you to different market segments and your target audience (see Laura Lippay's: http://www.seomoz.org/blog/the-8step-seo-strategy-step-1-define-your-target-audience-and-their-needs).