1. If this is supposed to be formal, eliminate use of the first & second persons.
2. Sentence two has a vague "it" and is disjointed.
3. Sentence about Math.com needs "s" at end of "boast."
4. Same sentence, you use the wrong term: "then" instead of "than."
5. "Lastly" should be changed to "last" so it matches the preceding terms in the list.
6. Last sentence of first paragraph MUST GO. Never tell the reader to keep reading, if your paper is interesting they can make up their own minds.
7. Change first sentence 2nd paragraph to "dating websites are" and swap "wave" for "way."
8. Third sentence, either capitalize "Date" in "J Date" or don't, be consistent. Same sentence, that looks like a comma. It needs to go, or you need to use a lowercase letter for the next word. Your pick. I say split up that sentence.
9. Next sentence, lowercase on the beginning of the quote, and cite the source if that is what your teacher requires. Also, period goes inside the last quotation mark.
10. Next sentence needs complete overhaul. I think you mean to say you approve of the notion of religion-specific sites? If yes, then say so.
11. Next sentence (beginning of 3rd paragraph) change "wants" to "want."
12. Two sentences later, move the comma from where it is (after "such as") to before "such as."
13. Next: Match.com states THAT they have...
14. Next sentence, drop "to."
Basic general stuff: What was the assignment? Make sure you've met the criteria for the project. Also, outline main points and fix up your topics a bit, because your paragraphs are kind of randomly filled with information, rather than guiding the reader throughout specific items to a conclusion. And how much opinion is this thing supposed to contain? Make sure you keep that in check also.
Good luck!