prepositionsword-choice
I write this context:
Dear Sir or Madam,
I am XXXX from Italy.
I am a Software Engineer. I have graduated from XXXX University, Faculty of XXXX, Department of XXXX on month, day, year.
I am looking for a job in XXXX.
I found your website through the internet.
Could you please find the attached CV.
I appreciate your help and efforts.
Thank you very much.
Yours' Sincerely,
Is it correct to use through ? or it would be better to use in ?
Thanks
I would generally use "on the Internet" when I'm talking about the Internet as a location:
I found this picture on the Internet.
I would use "over the Internet" when I'm talking about the Internet as a means of content delivery:
I downloaded this picture over the Internet.
According to Google Ngram Viewer, finding fault is most commonly used with with and not in. The following graph makes the difference particularly clear:
If you experiment a little bit, you will see that it doesn't matter if the object (of the preposition) is a person or a thing.
You can visit the links below the graph to see some sample usages. As @DavidK mentions, in is almost never used in the manner you intend it to.
Best Answer
You should use "on the internet".
This Google Ngram shows popularity between the terms.