Bit of a ramble, here, bear with me...
What are people's thoughts about linking to sites that you own?
For example, on occasion when a question has been about a city I've been to (say Krakow) I've linked to my blog about there on it.
However, we've also seen companies who link to their sites, with no added benefit.
Where's the line? If say we own a site that, I dunno, sells camping gear, and someone asks about that, and we link to it? Or if we were the guy who runs seat61.com, every time someone asked about trains, if we linked to it, what about then?
My opinion has generally been that it's necessary to add benefit to the answer, rather than link spam (which we've removed in the past), AND that full disclosure is necessary.
Any further thoughts?