IMHO, you can chose to write on whatever topic you want. Just do proper research before you write, that is all.
You've still got competition to deal with for rankings...and generated content usually has some noticeable flaws.
talking about unique contents, I am wondering what the meaning of unique content actually. I visit and read so many web site for one topic, some have summary of a web site, do they steal the content? let me give a specific example. I look for a product review, then i find lots of web site which display the product review. The content of the sites almost the same. I think this is not unique content. some other topics (like hiv/aids, diet strategies etc for example) also has the same contents. if it is so, then it's very difficult to write a unique content. Sorry if I'm wrong/misinterpret.
I run into this all the time for product reviews, yes it's usually stealing of content. For example, I was looking for a review of a new DVR and I could tell in just the snippets from the search results that the text of most of the sites was the same. Cnet or someone did the original review and hundreds of other sites popped up using the text as is, usually not citing a source. It is NOT unique content. It's plagiarism pure and simple...even if it is digital theft which these people must feel isn't as bad as stealing physically printed matter. These types of sites need to be banned from the indexes...to me it strikes to the heart of the SE problem, not being able to find information. You are finding information in one sense, but you are missing out on the few unique and original reviews because they get lost in the mix of the plethora of sites showing stolen content.
as google's algorithms get smarter and smarter hopefully they will be able to distinguish between poorly written or fake morphed feed content and penalize those sites in the serp's google's main overall search engine goal is to reward quality and relevance ... so they will always be tweaking and modifying their algorithm toward that goal... poorly written and rewritten and plagarized crappy sites might be lucky enough to get indexed but one might expect that they will find themselves penalized and dumped to the bottom of the rankings relevant, original, and well written content should be the goal
Can't agree more than this. If google or any other SE really needs to improve their ranking algo, they need to seriously trash out crap duplicate sites/ RSS agreegator and so called "Auto-generated PLR articles". I always wonder about the the "PLR market". Who wrote those original articles, it gotta be owned by someone and wrote for a specific purpose. Now don't tell me that someone bought rights to distribute it legally. The same so called PLR stuff then gets into the hands of people who dream about making quick buck online without doing any hard work and that results in another duplicate site on the web. The result is horrible google search results to the end user.