I meet a lot of people online who say that they get all the fellowship that they need in chat forums and facebook and real-time chats with christian friends so they do not attend church. Do you think that is okay? Does your internet take you away from church attendance? And before you complain that this thread is not theological enough how about you tell me what bible passages support internet-meeting Christianity as opposed to real face to face meeting Christianity?
I don't think you can possibly get enough fellowship with people who are essentially strangers on the internet.
It's possible that people met online can become sufficiently close friends that genuine fellowship can exist which can, to an extent, supplement more local face-to-face fellowship, but it's equally possible that a chat board can turn into little more than an endless game of platforms as people try to one-up each other by saying the holiest thing imaginable. Online nobody knows if you just talk a good game or if you actually live it. One issue I believe affects people, spiritually as well as emotionally, is the tendency (massively fuelled by social media) to compare you own life that you see warts-and-all with someone else's life when all you see is the polished front they want you to see. In a Christian context it's very easy to see the things you struggle with and then see people in church and assume they don't have any struggles because they seem to have it all together. A group that provides fellowship and support may not be universally open about their struggles but would hopefully provide a situation where people can interact in still smaller groups to discuss things in more detail.
It might be appropriate to ask a small group for prayer because you're struggling with anxiety over something specific, or afraid of upcoming medical treatment, or in need of new employment, or similar. If your concern is more personal the chances are you'll want to discuss privately with one or two, in which case it's possible that "one or two" might not be people you see face to face. The trouble with that is that even though it means you can discuss something without losing face at church it can still mean that sin stays hidden, which generally isn't a good place to be.
Assuming "church" is doing what a church should do I don't think it's possible to replace it with anything other than a small group of friends who meet regularly (in which case that group is essentially a church anyway, even if it doesn't meet in a building called a church). If "church" is the kind of faceless megachurch where you can stop attending for three months without anyone noticing, chances are it can be adequately replaced with private devotional time (but frankly shame on the churches where a regular can leave without anybody noticing).
With respect, I think your question about Bible passages supporting internet meetings is a little daft, simply because the internet isn't mentioned in the Bible at all for fairly obvious reasons. You might as well ask where the Bible says anything about watching porn online, or trading state secrets online, or e-commerce, or anything else online. The Bible refers to when people come together (e.g. 1Co 14:26) and doesn't explicitly state how they are to come together so, in theory at least, it's acceptable for people to come together via a Skype videoconference.
There's also the issue of people who can't attend a church, whether through infirmity or merely living in an area with no churches. For people like that an online fellowship may be the best they can get.
