my reviews and finds

I will not participate in any 'viral link' trains and here's the reason why. They are BAD for your Blog.
Simply put, if you are linking to sites that are not relative to your site then this will do you little to no good and can get you banned from Google.

See:
Quality guidelines - basic principles

Make pages for users, not for search engines. Don’t deceive your users or present different content to search engines than you display to users, which is commonly referred to as “cloaking.”

Avoid tricks intended to improve search engine rankings. A good rule of thumb is whether you’d feel comfortable explaining what you’ve done to a website that competes with you.

Another useful test is to ask, “Does this help my users? Would I do this if search engines didn’t exist?”

Don’t participate in link schemes designed to increase your site’s ranking or PageRank. In particular, avoid links to web spammers or “bad neighborhoods” on the web, as your own ranking may be affected adversely by those links.

Don’t use unauthorized computer programs to submit pages, check rankings, etc. Such programs consume computing resources and violate our Terms of Service.
Google does not recommend the use of products such as WebPosition Gold™ that send automatic or programmatic queries to Google.

In my opinion, it is better to have loyal readers, relevant links, and a good SEO rather than a bunch of irrelevant links that really might bring you a temporary increase in visitors but in the long run damage your credibility.