Take this into account from the second article, and it's straight from Google... LINKS INTENDED TO MANIPULATE PAGERANK
__________________
CARI.net offers a wide variety of hosting options including dedicated servers, server clusters, public and private cloud offerings as well as server virtualization hypervisors.
Sorry, but I see no facts presented to substantiate any claim the reciprocal linking is 100% useless. I will agree that excessive reciprocal linking with the intent of manipulating rankings or PageRank can cause problems.
inbound is much better outbound is just a proof that you have thrown information or you have an additional information related to that outbound links or a particular sites.