To revisit a familiar topic – it’s human nature to look for the best deal and it doesn’t get much better than free. That’s why the web hosting industry has jumped hard on the idea and run with it, becoming so jampacked with cheap and low cost options dangled in front of consumers like some kind of irresistible bait that it’s hard to sort them all out.
Many web hosting services offer so-called unlimited or unmetered service for whatever amount of bandwidth, disk storage and sites you use. It's important to understand that most terms of service actually do limit the definition of "unlimited" to what's considered reasonable use. The bottom line is simple: if you're building a pretty basic website, unlimited means you don't need to worry. But if you're trying to do something excessive (or illegal, immoral or fattening), the fine print in the terms of service will trigger, and you'll either be asked to spend more or go elsewhere.