When or according to what criteria are OBLs from a .gov or .edu (if they are) given more weight? Is anyone saying all .gov or .edu OBLs lend added weight? Doubtful that that is the case. A bit unrefined if it is and likely to soon change.
Will .gov or .edu links continue to be given added weight IF, as in everything else search engine, patterns of attempting to game the algo begin to emerge?
What is the most logical and sustainable reason(s) for any .edu or .gov link to be given added weight? Is the answer to this question a guide to targeting efforts?
Are there natural and unnatural beneficiary markets for .edu or .gov links? Chances are, given the scope of .edu and .gov sites, the answer is "there is always a natural market for a link from the relevant site to a relevant site. Culinary schools and restaurants might play nicely.
Do .edu or .gov links play nicely with theming?
What, exactly, is the measure of subject matter authority of a .gov or .edu website or OBL? Would/should a link from SEC.gov lend weight to a phentermine website? (Don't answer that.)
What cluster of factors might add weight to an outbound .gov or .edu link? IBLs to the OBL page from authority sites? IBLs to the OBL page where the subject matter authority of the IBL correlates to the anchor text of the OBL?
Lots of questions and, as is often the case, one might safely assume that by the time the issue is raised for discussion in forums the algo tweakers are (hopefully) 3 or 4 steps ahead of the effort to gain an advantage by exploiting the weighting factor under discussion.
[edited by: Webwork at 5:10 pm (utc) on April 23, 2006]