This is a strong thesis because it shows how your experience contradicts a widely accepted view. A good strategy for creating a strong thesis is to show that the topic is controversial. Readers will be interested in reading the rest of the essay to see how you support your point.
This is a weak thesis statement because the reader can't decide whether the paper is about marketing on the Internet or web pages. To revise the thesis, the relationship between the two ideas needs to become clearer. One way to revise the thesis would be to write: