My opinion is that you should write about what you know very well. That way your pages will contain genuine content and will help you in ling term.
if you really want a random subject to write everyday, you can subscribe to the feed on this page: http://www.google.com/trends/hottrends?sa=X you'll have your daily dose.
Not always ... i know many things about setup a radio station Shoutcast , Icecast , Steamcast .... but why to write about radio when Adsense pay 0.01 and 0.02 for a click ? i not agree with this ideea , choose what you like most from what pay most .... this i think is one secret
you actually have to decide what you want to write about. i see some advising writing on something you like which makes sense as you have to LOVE writing about it on a regular basis. but at the same time Newzone also makes a valid point. whats the point of writing about your hobby if it pays 1 cent per click. so the idea is to combine both. pick a topic that pays well and you will enjoy wting about. doesn;t have to be one of your current hobby or something you already know. you can learn as you go, and when you start making lot of $$$ you will know even more
Yes, it is true people can have interests inmany areas. its best to write on something you have at least some interest in.
If I can't write, then there is no way to make hundreds a month from adsense? Does it have to be a heavy text website? Can it just have lots of video content or other stuff?
Problem with going for the popular is that A) you have a lot of competition or B) by the time you get your site running, it may no longer be popular.
i thing the best topic to write is about the movies nd music along with the people from the world of glamour. it will provide good result.
I write on random topics. My biggest problem with writing is to overcome laziness and procrastination. Writing has to become a second nature - say to yourself: I am going to write and publish at least 2 articles of 300 words per day and do not go to bed until they are written...
The best is write what you know ,don't try to write what you don't know. If you write what you know and the subjects that interest you,your content will be unique and nice .