I occasionally use and/or recommend dbSNP batch query service to search rs-IDs and get for example the coordinates.
Today I read that the batch query service will be discontinued in June. See also this post. (Has been announced in July apparently but I missed it then).
What are good alternatives, optionally web-based?
For me personally, those options would all work, but none of those is as convenient as justing putting your rs IDs in the field and getting the results.