Today, the web stack is much more accessible, and accessible to a much larger group of people. Indeed, a non-trivial number of its parts are relatively automated (e.g. Weebly). In 1995, it was only accessible to a much smaller group of people. Mobile app development will soon reach the same point. And yet, there are plenty of new technologies and ecosystems - to learn and creatively generate something from - that are inaccessible to people in the same way the web was in 1995.
Experiment until you find something people want that has a promising business model and tech model design. If you get traction, don't take investment from just anyone (I'm reminded of Amazon's VC arm working with Amazon to copy a portfolio companies' product, which then buried that startup). Etc. Etc. There are plenty of other early-stage strategic heuristics you can utilize to your advantage.
Perceived weaknesses or disadvantages can be the other-side of an actual strength or advantage.
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I want to emphasize this point more: often times, the lack of resources (whether financial, intellectual, etc.) is the setting of a creative breakthrough that generates the successful business model and tech model.
Not only are the low hanging ideas saturated (ie website monitoring, brand monitoring, fitness apps), but the bigger ideas require a lot of data, and the big tech companies have the clear advantage.