Link love is posting a link to sites or blogs, usually unsolicited, that you enjoy, admire, or find useful. (Blogossary)
Sometimes i want to write about something completely unrelated with main topics (search marketing, web analytics, open source, search engine optimization, …). “Link love” is where i can talk about a travel, a restaurant, and so on. And, of course, where i can link websites i think deserve my link. Link love.