Information Today is one such company. It has many good publications. One that I love and read cover to cover is EContent. The readership is probably fairly small, but the articles are well written and I love the research. It's all about search, content business models, content management, news feeds, subscription databases, search engines, RSS feeds, XML, digital rights, syndication, and more. I learn here about companies that rarely get covered in the main stream technology press.
Finally! I have been sending and receiving 100-200 emails per day for several years now, and it has always been frustrating for me that Outlook provides no easy way for me to turn incoming emails (or outgoing emails) into Contacts. LinkedIn.com is now offering a free Outlook plug-in tool that does just that. I just ran the "collecting contacts" feature on my current and archived email lists and it came back with several hundred old contacts with whom I am no longer in touch.